21970764

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 120

約数和(自身を含む): 62610240

約数和(自身を除く): 40639476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 43, 54, 57, 76, 81, 83, 86, 108, 114, 129, 162, 166, 171, 172, 228, 249, 258, 324, 332, 342, 387, 498, 513, 516, 684, 747, 774, 817, 996, 1026, 1161, 1494, 1539, 1548, 1577, 1634, 2052, 2241, 2322, 2451, 2988, 3078, 3154, 3268, 3483, 3569, 4482, 4644, 4731, 4902, 6156, 6308, 6723, 6966, 7138, 7353, 8964, 9462, 9804, 10707, 13446, 13932, 14193, 14276, 14706, 18924, 21414, 22059, 26892, 28386, 29412, 32121, 42579, 42828, 44118, 56772, 64242, 66177, 67811, 85158, 88236, 96363, 127737, 128484, 132354, 135622, 170316, 192726, 203433, 255474, 264708, 271244, 289089, 385452, 406866, 510948, 578178, 610299, 813732, 1156356, 1220598, 1830897, 2441196, 3661794, 5492691, 7323588, 10985382, 21970764]

約数ペア:

[(1, 21970764), (2, 10985382), (3, 7323588), (4, 5492691), (6, 3661794), (9, 2441196), (12, 1830897), (18, 1220598), (19, 1156356), (27, 813732), (36, 610299), (38, 578178), (43, 510948), (54, 406866), (57, 385452), (76, 289089), (81, 271244), (83, 264708), (86, 255474), (108, 203433), (114, 192726), (129, 170316), (162, 135622), (166, 132354), (171, 128484), (172, 127737), (228, 96363), (249, 88236), (258, 85158), (324, 67811), (332, 66177), (342, 64242), (387, 56772), (498, 44118), (513, 42828), (516, 42579), (684, 32121), (747, 29412), (774, 28386), (817, 26892), (996, 22059), (1026, 21414), (1161, 18924), (1494, 14706), (1539, 14276), (1548, 14193), (1577, 13932), (1634, 13446), (2052, 10707), (2241, 9804), (2322, 9462), (2451, 8964), (2988, 7353), (3078, 7138), (3154, 6966), (3268, 6723), (3483, 6308), (3569, 6156), (4482, 4902), (4644, 4731)]