21428108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2729}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 40666080

約数和(自身を除く): 19237972

約数列:

[1, 2, 4, 13, 26, 52, 151, 302, 604, 1963, 2729, 3926, 5458, 7852, 10916, 35477, 70954, 141908, 412079, 824158, 1648316, 5357027, 10714054, 21428108]

約数ペア:

[(1, 21428108), (2, 10714054), (4, 5357027), (13, 1648316), (26, 824158), (52, 412079), (151, 141908), (302, 70954), (604, 35477), (1963, 10916), (2729, 7852), (3926, 5458)]