20781678736

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14273131}}^1$

素因数の和:14273159

約数の個数: 40

約数和(自身を含む): 49556314304

約数和(自身を除く): 28774635568

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14273131, 28546262, 57092524, 99911917, 114185048, 185550703, 199823834, 228370096, 371101406, 399647668, 742202812, 799295336, 1298854921, 1484405624, 1598590672, 2597709842, 2968811248, 5195419684, 10390839368, 20781678736]

約数ペア:

[(1, 20781678736), (2, 10390839368), (4, 5195419684), (7, 2968811248), (8, 2597709842), (13, 1598590672), (14, 1484405624), (16, 1298854921), (26, 799295336), (28, 742202812), (52, 399647668), (56, 371101406), (91, 228370096), (104, 199823834), (112, 185550703), (182, 114185048), (208, 99911917), (364, 57092524), (728, 28546262), (1456, 14273131)]