21142472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203293}}^1$

素因数の和:203312

約数の個数: 16

約数和(自身を含む): 42691740

約数和(自身を除く): 21549268

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203293, 406586, 813172, 1626344, 2642809, 5285618, 10571236, 21142472]

約数ペア:

[(1, 21142472), (2, 10571236), (4, 5285618), (8, 2642809), (13, 1626344), (26, 813172), (52, 406586), (104, 203293)]