21647830

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{94121}}^1$

素因数の和:94151

約数の個数: 16

約数和(自身を含む): 40660704

約数和(自身を除く): 19012874

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 94121, 188242, 470605, 941210, 2164783, 4329566, 10823915, 21647830]

約数ペア:

[(1, 21647830), (2, 10823915), (5, 4329566), (10, 2164783), (23, 941210), (46, 470605), (115, 188242), (230, 94121)]