21663408

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 60933600

約数和(自身を除く): 39270192

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 149, 156, 208, 233, 298, 312, 447, 466, 596, 624, 699, 894, 932, 1192, 1398, 1788, 1864, 1937, 2384, 2796, 3029, 3576, 3728, 3874, 5592, 5811, 6058, 7152, 7748, 9087, 11184, 11622, 12116, 15496, 18174, 23244, 24232, 30992, 34717, 36348, 46488, 48464, 69434, 72696, 92976, 104151, 138868, 145392, 208302, 277736, 416604, 451321, 555472, 833208, 902642, 1353963, 1666416, 1805284, 2707926, 3610568, 5415852, 7221136, 10831704, 21663408]

約数ペア:

[(1, 21663408), (2, 10831704), (3, 7221136), (4, 5415852), (6, 3610568), (8, 2707926), (12, 1805284), (13, 1666416), (16, 1353963), (24, 902642), (26, 833208), (39, 555472), (48, 451321), (52, 416604), (78, 277736), (104, 208302), (149, 145392), (156, 138868), (208, 104151), (233, 92976), (298, 72696), (312, 69434), (447, 48464), (466, 46488), (596, 36348), (624, 34717), (699, 30992), (894, 24232), (932, 23244), (1192, 18174), (1398, 15496), (1788, 12116), (1864, 11622), (1937, 11184), (2384, 9087), (2796, 7748), (3029, 7152), (3576, 6058), (3728, 5811), (3874, 5592)]