21278028

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1217}}^1$

素因数の和:1302

約数の個数: 48

約数和(自身を含む): 52383744

約数和(自身を除く): 31105716

約数列:

[1, 2, 3, 4, 6, 12, 31, 47, 62, 93, 94, 124, 141, 186, 188, 282, 372, 564, 1217, 1457, 2434, 2914, 3651, 4371, 4868, 5828, 7302, 8742, 14604, 17484, 37727, 57199, 75454, 113181, 114398, 150908, 171597, 226362, 228796, 343194, 452724, 686388, 1773169, 3546338, 5319507, 7092676, 10639014, 21278028]

約数ペア:

[(1, 21278028), (2, 10639014), (3, 7092676), (4, 5319507), (6, 3546338), (12, 1773169), (31, 686388), (47, 452724), (62, 343194), (93, 228796), (94, 226362), (124, 171597), (141, 150908), (186, 114398), (188, 113181), (282, 75454), (372, 57199), (564, 37727), (1217, 17484), (1457, 14604), (2434, 8742), (2914, 7302), (3651, 5828), (4371, 4868)]