21204816

素因数分解:

$2^4\times 3^1\times {\mathrm{103}}^1\times {\mathrm{4289}}^1$

素因数の和:4403

約数の個数: 40

約数和(自身を含む): 55323840

約数和(自身を除く): 34119024

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 103, 206, 309, 412, 618, 824, 1236, 1648, 2472, 4289, 4944, 8578, 12867, 17156, 25734, 34312, 51468, 68624, 102936, 205872, 441767, 883534, 1325301, 1767068, 2650602, 3534136, 5301204, 7068272, 10602408, 21204816]

約数ペア:

[(1, 21204816), (2, 10602408), (3, 7068272), (4, 5301204), (6, 3534136), (8, 2650602), (12, 1767068), (16, 1325301), (24, 883534), (48, 441767), (103, 205872), (206, 102936), (309, 68624), (412, 51468), (618, 34312), (824, 25734), (1236, 17156), (1648, 12867), (2472, 8578), (4289, 4944)]