21076920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:605

約数の個数: 96

約数和(自身を含む): 69189120

約数和(自身を除く): 48112200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 127, 180, 254, 360, 381, 461, 508, 635, 762, 922, 1016, 1143, 1270, 1383, 1524, 1844, 1905, 2286, 2305, 2540, 2766, 3048, 3688, 3810, 4149, 4572, 4610, 5080, 5532, 5715, 6915, 7620, 8298, 9144, 9220, 11064, 11430, 13830, 15240, 16596, 18440, 20745, 22860, 27660, 33192, 41490, 45720, 55320, 58547, 82980, 117094, 165960, 175641, 234188, 292735, 351282, 468376, 526923, 585470, 702564, 878205, 1053846, 1170940, 1405128, 1756410, 2107692, 2341880, 2634615, 3512820, 4215384, 5269230, 7025640, 10538460, 21076920]

約数ペア:

[(1, 21076920), (2, 10538460), (3, 7025640), (4, 5269230), (5, 4215384), (6, 3512820), (8, 2634615), (9, 2341880), (10, 2107692), (12, 1756410), (15, 1405128), (18, 1170940), (20, 1053846), (24, 878205), (30, 702564), (36, 585470), (40, 526923), (45, 468376), (60, 351282), (72, 292735), (90, 234188), (120, 175641), (127, 165960), (180, 117094), (254, 82980), (360, 58547), (381, 55320), (461, 45720), (508, 41490), (635, 33192), (762, 27660), (922, 22860), (1016, 20745), (1143, 18440), (1270, 16596), (1383, 15240), (1524, 13830), (1844, 11430), (1905, 11064), (2286, 9220), (2305, 9144), (2540, 8298), (2766, 7620), (3048, 6915), (3688, 5715), (3810, 5532), (4149, 5080), (4572, 4610)]