218888929

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{769}}^1$

素因数の和:977

約数の個数: 24

約数和(自身を含む): 263515560

約数和(自身を除く): 44626631

約数列:

[1, 7, 37, 49, 157, 259, 769, 1099, 1813, 5383, 5809, 7693, 28453, 37681, 40663, 120733, 199171, 284641, 845131, 1394197, 4467121, 5915917, 31269847, 218888929]

約数ペア:

[(1, 218888929), (7, 31269847), (37, 5915917), (49, 4467121), (157, 1394197), (259, 845131), (769, 284641), (1099, 199171), (1813, 120733), (5383, 40663), (5809, 37681), (7693, 28453)]