20443878

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1783}}^1$

素因数の和:1818

約数の個数: 72

約数和(自身を含む): 55521648

約数和(自身を除く): 35077770

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1783, 1911, 3566, 3822, 5349, 5733, 10698, 11466, 12481, 16047, 23179, 24962, 32094, 37443, 46358, 69537, 74886, 87367, 112329, 139074, 162253, 174734, 208611, 224658, 262101, 324506, 417222, 486759, 524202, 786303, 973518, 1135771, 1460277, 1572606, 2271542, 2920554, 3407313, 6814626, 10221939, 20443878]

約数ペア:

[(1, 20443878), (2, 10221939), (3, 6814626), (6, 3407313), (7, 2920554), (9, 2271542), (13, 1572606), (14, 1460277), (18, 1135771), (21, 973518), (26, 786303), (39, 524202), (42, 486759), (49, 417222), (63, 324506), (78, 262101), (91, 224658), (98, 208611), (117, 174734), (126, 162253), (147, 139074), (182, 112329), (234, 87367), (273, 74886), (294, 69537), (441, 46358), (546, 37443), (637, 32094), (819, 24962), (882, 23179), (1274, 16047), (1638, 12481), (1783, 11466), (1911, 10698), (3566, 5733), (3822, 5349)]