21761641

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 24442560

約数和(自身を除く): 2680919

約数列:

[1, 11, 53, 163, 229, 583, 1793, 2519, 8639, 12137, 37327, 95029, 133507, 410597, 1978331, 21761641]

約数ペア:

[(1, 21761641), (11, 1978331), (53, 410597), (163, 133507), (229, 95029), (583, 37327), (1793, 12137), (2519, 8639)]