21478090

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{93383}}^1$

素因数の和:93413

約数の個数: 16

約数和(自身を含む): 40341888

約数和(自身を除く): 18863798

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 93383, 186766, 466915, 933830, 2147809, 4295618, 10739045, 21478090]

約数ペア:

[(1, 21478090), (2, 10739045), (5, 4295618), (10, 2147809), (23, 933830), (46, 466915), (115, 186766), (230, 93383)]