20347840821

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:763

約数の個数: 128

約数和(自身を含む): 36686794752

約数和(自身を除く): 16338953931

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 61, 77, 119, 173, 183, 187, 231, 357, 427, 491, 519, 561, 671, 1037, 1211, 1281, 1309, 1473, 1903, 2013, 2941, 3111, 3437, 3633, 3927, 4697, 5401, 5709, 7259, 8347, 8823, 10311, 10553, 11407, 13321, 14091, 16203, 20587, 21777, 25041, 29951, 31659, 32351, 34221, 37807, 39963, 58429, 61761, 73871, 79849, 84943, 89853, 91817, 97053, 113421, 116083, 175287, 179401, 209657, 221613, 226457, 239547, 254829, 275451, 329461, 348249, 509167, 538203, 594601, 628971, 642719, 679371, 812581, 934373, 988383, 1255807, 1444031, 1527501, 1783803, 1928157, 1973411, 2306227, 2437743, 2803119, 3564169, 3767421, 4332093, 5181523, 5600837, 5920233, 6540611, 6918681, 10108217, 10692507, 13813877, 15544569, 15884341, 16802511, 19621833, 30324651, 36270661, 39205859, 41441631, 47653023, 56996753, 88085891, 108811983, 111190387, 117617577, 170990259, 264257673, 333571161, 398977271, 616601237, 968944801, 1196931813, 1849803711, 2906834403, 6782613607, 20347840821]

約数ペア:

[(1, 20347840821), (3, 6782613607), (7, 2906834403), (11, 1849803711), (17, 1196931813), (21, 968944801), (33, 616601237), (51, 398977271), (61, 333571161), (77, 264257673), (119, 170990259), (173, 117617577), (183, 111190387), (187, 108811983), (231, 88085891), (357, 56996753), (427, 47653023), (491, 41441631), (519, 39205859), (561, 36270661), (671, 30324651), (1037, 19621833), (1211, 16802511), (1281, 15884341), (1309, 15544569), (1473, 13813877), (1903, 10692507), (2013, 10108217), (2941, 6918681), (3111, 6540611), (3437, 5920233), (3633, 5600837), (3927, 5181523), (4697, 4332093), (5401, 3767421), (5709, 3564169), (7259, 2803119), (8347, 2437743), (8823, 2306227), (10311, 1973411), (10553, 1928157), (11407, 1783803), (13321, 1527501), (14091, 1444031), (16203, 1255807), (20587, 988383), (21777, 934373), (25041, 812581), (29951, 679371), (31659, 642719), (32351, 628971), (34221, 594601), (37807, 538203), (39963, 509167), (58429, 348249), (61761, 329461), (73871, 275451), (79849, 254829), (84943, 239547), (89853, 226457), (91817, 221613), (97053, 209657), (113421, 179401), (116083, 175287)]