212420908

素因数分解:

$2^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{21863}}^1$

素因数の和:22221

約数の個数: 24

約数和(自身を含む): 426085632

約数和(自身を除く): 213664724

約数列:

[1, 2, 4, 7, 14, 28, 347, 694, 1388, 2429, 4858, 9716, 21863, 43726, 87452, 153041, 306082, 612164, 7586461, 15172922, 30345844, 53105227, 106210454, 212420908]

約数ペア:

[(1, 212420908), (2, 106210454), (4, 53105227), (7, 30345844), (14, 15172922), (28, 7586461), (347, 612164), (694, 306082), (1388, 153041), (2429, 87452), (4858, 43726), (9716, 21863)]