21781119370

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{94700519}}^1$

素因数の和:94700549

約数の個数: 16

約数和(自身を含む): 40910624640

約数和(自身を除く): 19129505270

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 94700519, 189401038, 473502595, 947005190, 2178111937, 4356223874, 10890559685, 21781119370]

約数ペア:

[(1, 21781119370), (2, 10890559685), (5, 4356223874), (10, 2178111937), (23, 947005190), (46, 473502595), (115, 189401038), (230, 94700519)]