20687898

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6397}}^1$

素因数の和:6427

約数の個数: 48

約数和(自身を含む): 52514784

約数和(自身を除く): 31826886

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 1078, 1617, 3234, 6397, 12794, 19191, 38382, 44779, 70367, 89558, 134337, 140734, 211101, 268674, 313453, 422202, 492569, 626906, 940359, 985138, 1477707, 1880718, 2955414, 3447983, 6895966, 10343949, 20687898]

約数ペア:

[(1, 20687898), (2, 10343949), (3, 6895966), (6, 3447983), (7, 2955414), (11, 1880718), (14, 1477707), (21, 985138), (22, 940359), (33, 626906), (42, 492569), (49, 422202), (66, 313453), (77, 268674), (98, 211101), (147, 140734), (154, 134337), (231, 89558), (294, 70367), (462, 44779), (539, 38382), (1078, 19191), (1617, 12794), (3234, 6397)]