21663984

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:358

約数の個数: 80

約数和(自身を含む): 59996160

約数和(自身を除く): 38332176

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 139, 191, 204, 272, 278, 382, 408, 417, 556, 573, 764, 816, 834, 1112, 1146, 1528, 1668, 2224, 2292, 2363, 3056, 3247, 3336, 4584, 4726, 6494, 6672, 7089, 9168, 9452, 9741, 12988, 14178, 18904, 19482, 25976, 26549, 28356, 37808, 38964, 51952, 53098, 56712, 77928, 79647, 106196, 113424, 155856, 159294, 212392, 318588, 424784, 451333, 637176, 902666, 1274352, 1353999, 1805332, 2707998, 3610664, 5415996, 7221328, 10831992, 21663984]

約数ペア:

[(1, 21663984), (2, 10831992), (3, 7221328), (4, 5415996), (6, 3610664), (8, 2707998), (12, 1805332), (16, 1353999), (17, 1274352), (24, 902666), (34, 637176), (48, 451333), (51, 424784), (68, 318588), (102, 212392), (136, 159294), (139, 155856), (191, 113424), (204, 106196), (272, 79647), (278, 77928), (382, 56712), (408, 53098), (417, 51952), (556, 38964), (573, 37808), (764, 28356), (816, 26549), (834, 25976), (1112, 19482), (1146, 18904), (1528, 14178), (1668, 12988), (2224, 9741), (2292, 9452), (2363, 9168), (3056, 7089), (3247, 6672), (3336, 6494), (4584, 4726)]