21594440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{331}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 55935360

約数和(自身を除く): 34340920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 280, 331, 466, 662, 932, 1165, 1324, 1631, 1655, 1864, 2317, 2330, 2648, 3262, 3310, 4634, 4660, 6524, 6620, 8155, 9268, 9320, 11585, 13048, 13240, 16310, 18536, 23170, 32620, 46340, 65240, 77123, 92680, 154246, 308492, 385615, 539861, 616984, 771230, 1079722, 1542460, 2159444, 2699305, 3084920, 4318888, 5398610, 10797220, 21594440]

約数ペア:

[(1, 21594440), (2, 10797220), (4, 5398610), (5, 4318888), (7, 3084920), (8, 2699305), (10, 2159444), (14, 1542460), (20, 1079722), (28, 771230), (35, 616984), (40, 539861), (56, 385615), (70, 308492), (140, 154246), (233, 92680), (280, 77123), (331, 65240), (466, 46340), (662, 32620), (932, 23170), (1165, 18536), (1324, 16310), (1631, 13240), (1655, 13048), (1864, 11585), (2317, 9320), (2330, 9268), (2648, 8155), (3262, 6620), (3310, 6524), (4634, 4660)]