20394099

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 34011648

約数和(自身を除く): 13617549

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 141, 297, 423, 487, 517, 891, 1269, 1461, 1551, 3807, 4383, 4653, 5357, 13149, 13959, 16071, 22889, 39447, 41877, 48213, 68667, 144639, 206001, 251779, 433917, 618003, 755337, 1854009, 2266011, 6798033, 20394099]

約数ペア:

[(1, 20394099), (3, 6798033), (9, 2266011), (11, 1854009), (27, 755337), (33, 618003), (47, 433917), (81, 251779), (99, 206001), (141, 144639), (297, 68667), (423, 48213), (487, 41877), (517, 39447), (891, 22889), (1269, 16071), (1461, 13959), (1551, 13149), (3807, 5357), (4383, 4653)]