21168753

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 9797007

約数列:

[1, 3, 29, 31, 47, 87, 93, 141, 167, 501, 899, 1363, 1457, 2697, 4089, 4371, 4843, 5177, 7849, 14529, 15531, 23547, 42253, 126759, 150133, 227621, 243319, 450399, 682863, 729957, 7056251, 21168753]

約数ペア:

[(1, 21168753), (3, 7056251), (29, 729957), (31, 682863), (47, 450399), (87, 243319), (93, 227621), (141, 150133), (167, 126759), (501, 42253), (899, 23547), (1363, 15531), (1457, 14529), (2697, 7849), (4089, 5177), (4371, 4843)]