21081054

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26197026

約数列:

[1, 2, 3, 6, 17, 31, 34, 51, 59, 62, 93, 102, 113, 118, 177, 186, 226, 339, 354, 527, 678, 1003, 1054, 1581, 1829, 1921, 2006, 3009, 3162, 3503, 3658, 3842, 5487, 5763, 6018, 6667, 7006, 10509, 10974, 11526, 13334, 20001, 21018, 31093, 40002, 59551, 62186, 93279, 113339, 119102, 178653, 186558, 206677, 226678, 340017, 357306, 413354, 620031, 680034, 1240062, 3513509, 7027018, 10540527, 21081054]

約数ペア:

[(1, 21081054), (2, 10540527), (3, 7027018), (6, 3513509), (17, 1240062), (31, 680034), (34, 620031), (51, 413354), (59, 357306), (62, 340017), (93, 226678), (102, 206677), (113, 186558), (118, 178653), (177, 119102), (186, 113339), (226, 93279), (339, 62186), (354, 59551), (527, 40002), (678, 31093), (1003, 21018), (1054, 20001), (1581, 13334), (1829, 11526), (1921, 10974), (2006, 10509), (3009, 7006), (3162, 6667), (3503, 6018), (3658, 5763), (3842, 5487)]