20447690

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88903}}^1$

素因数の和:88933

約数の個数: 16

約数和(自身を含む): 38406528

約数和(自身を除く): 17958838

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 88903, 177806, 444515, 889030, 2044769, 4089538, 10223845, 20447690]

約数ペア:

[(1, 20447690), (2, 10223845), (5, 4089538), (10, 2044769), (23, 889030), (46, 444515), (115, 177806), (230, 88903)]