21515364

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1537

約数の個数: 72

約数和(自身を含む): 60499712

約数和(自身を除く): 38984348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1483, 1612, 2418, 2966, 3627, 4449, 4836, 5932, 7254, 8898, 13347, 14508, 17796, 19279, 26694, 38558, 45973, 53388, 57837, 77116, 91946, 115674, 137919, 173511, 183892, 231348, 275838, 347022, 413757, 551676, 597649, 694044, 827514, 1195298, 1655028, 1792947, 2390596, 3585894, 5378841, 7171788, 10757682, 21515364]

約数ペア:

[(1, 21515364), (2, 10757682), (3, 7171788), (4, 5378841), (6, 3585894), (9, 2390596), (12, 1792947), (13, 1655028), (18, 1195298), (26, 827514), (31, 694044), (36, 597649), (39, 551676), (52, 413757), (62, 347022), (78, 275838), (93, 231348), (117, 183892), (124, 173511), (156, 137919), (186, 115674), (234, 91946), (279, 77116), (372, 57837), (403, 53388), (468, 45973), (558, 38558), (806, 26694), (1116, 19279), (1209, 17796), (1483, 14508), (1612, 13347), (2418, 8898), (2966, 7254), (3627, 5932), (4449, 4836)]