20332641

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 12614559

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 389, 393, 399, 917, 1167, 2489, 2723, 2751, 7391, 7467, 8169, 17423, 22173, 50959, 51737, 52269, 152877, 155211, 356713, 968221, 1070139, 2904663, 6777547, 20332641]

約数ペア:

[(1, 20332641), (3, 6777547), (7, 2904663), (19, 1070139), (21, 968221), (57, 356713), (131, 155211), (133, 152877), (389, 52269), (393, 51737), (399, 50959), (917, 22173), (1167, 17423), (2489, 8169), (2723, 7467), (2751, 7391)]