21000612346

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1\times {\mathrm{2539}}^1$

素因数の和:4099

約数の個数: 64

約数和(自身を含む): 39818096640

約数和(自身を除く): 18817484294

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 119, 161, 238, 322, 391, 782, 1511, 2539, 2737, 3022, 5078, 5474, 10577, 17773, 21154, 25687, 34753, 35546, 43163, 51374, 58397, 69506, 86326, 116794, 179809, 243271, 302141, 359618, 408779, 486542, 590801, 604282, 817558, 992749, 1181602, 1985498, 3836429, 4135607, 6949243, 7672858, 8271214, 13898486, 26855003, 53710006, 65219293, 88237867, 130438586, 176475734, 456535051, 617665069, 913070102, 1235330138, 1500043739, 3000087478, 10500306173, 21000612346]

約数ペア:

[(1, 21000612346), (2, 10500306173), (7, 3000087478), (14, 1500043739), (17, 1235330138), (23, 913070102), (34, 617665069), (46, 456535051), (119, 176475734), (161, 130438586), (238, 88237867), (322, 65219293), (391, 53710006), (782, 26855003), (1511, 13898486), (2539, 8271214), (2737, 7672858), (3022, 6949243), (5078, 4135607), (5474, 3836429), (10577, 1985498), (17773, 1181602), (21154, 992749), (25687, 817558), (34753, 604282), (35546, 590801), (43163, 486542), (51374, 408779), (58397, 359618), (69506, 302141), (86326, 243271), (116794, 179809)]