200991889

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1\times {\mathrm{1229}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 234270720

約数和(自身を除く): 33278831

約数列:

[1, 7, 61, 383, 427, 1229, 2681, 8603, 23363, 74969, 163541, 470707, 524783, 3294949, 28713127, 200991889]

約数ペア:

[(1, 200991889), (7, 28713127), (61, 3294949), (383, 524783), (427, 470707), (1229, 163541), (2681, 74969), (8603, 23363)]