217295512

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{90239}}^1$

素因数の和:90295

約数の個数: 32

約数和(自身を含む): 476467200

約数和(自身を除く): 259171688

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 90239, 180478, 360956, 631673, 721912, 1263346, 2526692, 3880277, 5053384, 7760554, 15521108, 27161939, 31042216, 54323878, 108647756, 217295512]

約数ペア:

[(1, 217295512), (2, 108647756), (4, 54323878), (7, 31042216), (8, 27161939), (14, 15521108), (28, 7760554), (43, 5053384), (56, 3880277), (86, 2526692), (172, 1263346), (301, 721912), (344, 631673), (602, 360956), (1204, 180478), (2408, 90239)]