20754734

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1481}}^1$

素因数の和:1521

約数の個数: 48

約数和(自身を含む): 42574896

約数和(自身を除く): 21820162

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 286, 539, 637, 1001, 1078, 1274, 1481, 2002, 2962, 7007, 10367, 14014, 16291, 19253, 20734, 32582, 38506, 72569, 114037, 134771, 145138, 211783, 228074, 269542, 423566, 798259, 943397, 1482481, 1596518, 1886794, 2964962, 10377367, 20754734]

約数ペア:

[(1, 20754734), (2, 10377367), (7, 2964962), (11, 1886794), (13, 1596518), (14, 1482481), (22, 943397), (26, 798259), (49, 423566), (77, 269542), (91, 228074), (98, 211783), (143, 145138), (154, 134771), (182, 114037), (286, 72569), (539, 38506), (637, 32582), (1001, 20734), (1078, 19253), (1274, 16291), (1481, 14014), (2002, 10367), (2962, 7007)]