20715786

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12647}}^1$

素因数の和:12675

約数の個数: 48

約数和(自身を含む): 55246464

約数和(自身を除く): 34530678

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, 12647, 25294, 37941, 75882, 88529, 113823, 164411, 177058, 227646, 265587, 328822, 493233, 531174, 796761, 986466, 1150877, 1479699, 1593522, 2301754, 2959398, 3452631, 6905262, 10357893, 20715786]

約数ペア:

[(1, 20715786), (2, 10357893), (3, 6905262), (6, 3452631), (7, 2959398), (9, 2301754), (13, 1593522), (14, 1479699), (18, 1150877), (21, 986466), (26, 796761), (39, 531174), (42, 493233), (63, 328822), (78, 265587), (91, 227646), (117, 177058), (126, 164411), (182, 113823), (234, 88529), (273, 75882), (546, 37941), (819, 25294), (1638, 12647)]