21007830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{6197}}^1$

素因数の和:6320

約数の個数: 32

約数和(自身を含む): 50873184

約数和(自身を除く): 29865354

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 113, 226, 339, 565, 678, 1130, 1695, 3390, 6197, 12394, 18591, 30985, 37182, 61970, 92955, 185910, 700261, 1400522, 2100783, 3501305, 4201566, 7002610, 10503915, 21007830]

約数ペア:

[(1, 21007830), (2, 10503915), (3, 7002610), (5, 4201566), (6, 3501305), (10, 2100783), (15, 1400522), (30, 700261), (113, 185910), (226, 92955), (339, 61970), (565, 37182), (678, 30985), (1130, 18591), (1695, 12394), (3390, 6197)]