21118734

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12893}}^1$

素因数の和:12921

約数の個数: 48

約数和(自身を含む): 56320992

約数和(自身を除く): 35202258

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12893, 25786, 38679, 77358, 90251, 116037, 167609, 180502, 232074, 270753, 335218, 502827, 541506, 812259, 1005654, 1173263, 1508481, 1624518, 2346526, 3016962, 3519789, 7039578, 10559367, 21118734]

約数ペア:

[(1, 21118734), (2, 10559367), (3, 7039578), (6, 3519789), (7, 3016962), (9, 2346526), (13, 1624518), (14, 1508481), (18, 1173263), (21, 1005654), (26, 812259), (39, 541506), (42, 502827), (63, 335218), (78, 270753), (91, 232074), (117, 180502), (126, 167609), (182, 116037), (234, 90251), (273, 77358), (546, 38679), (819, 25786), (1638, 12893)]