20912428

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9883}}^1$

素因数の和:9933

約数の個数: 18

約数和(自身を含む): 38260964

約数和(自身を除く): 17348536

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9883, 19766, 39532, 227309, 454618, 909236, 5228107, 10456214, 20912428]

約数ペア:

[(1, 20912428), (2, 10456214), (4, 5228107), (23, 909236), (46, 454618), (92, 227309), (529, 39532), (1058, 19766), (2116, 9883)]