21243186

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 47567520

約数和(自身を除く): 26324334

約数列:

[1, 2, 3, 6, 9, 18, 59, 83, 118, 166, 177, 241, 249, 354, 482, 498, 531, 723, 747, 1062, 1446, 1494, 2169, 4338, 4897, 9794, 14219, 14691, 20003, 28438, 29382, 40006, 42657, 44073, 60009, 85314, 88146, 120018, 127971, 180027, 255942, 360054, 1180177, 2360354, 3540531, 7081062, 10621593, 21243186]

約数ペア:

[(1, 21243186), (2, 10621593), (3, 7081062), (6, 3540531), (9, 2360354), (18, 1180177), (59, 360054), (83, 255942), (118, 180027), (166, 127971), (177, 120018), (241, 88146), (249, 85314), (354, 60009), (482, 44073), (498, 42657), (531, 40006), (723, 29382), (747, 28438), (1062, 20003), (1446, 14691), (1494, 14219), (2169, 9794), (4338, 4897)]