21959450

素因数分解:

$2^1\times 5^2\times {\mathrm{431}}^1\times {\mathrm{1019}}^1$

素因数の和:1462

約数の個数: 24

約数和(自身を含む): 40979520

約数和(自身を除く): 19020070

約数列:

[1, 2, 5, 10, 25, 50, 431, 862, 1019, 2038, 2155, 4310, 5095, 10190, 10775, 21550, 25475, 50950, 439189, 878378, 2195945, 4391890, 10979725, 21959450]

約数ペア:

[(1, 21959450), (2, 10979725), (5, 4391890), (10, 2195945), (25, 878378), (50, 439189), (431, 50950), (862, 25475), (1019, 21550), (2038, 10775), (2155, 10190), (4310, 5095)]