21552830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{523}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 41991264

約数和(自身を除く): 20438434

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 523, 634, 1046, 1585, 2615, 3170, 4121, 5230, 6799, 8242, 13598, 20605, 33995, 41210, 67990, 165791, 331582, 828955, 1657910, 2155283, 4310566, 10776415, 21552830]

約数ペア:

[(1, 21552830), (2, 10776415), (5, 4310566), (10, 2155283), (13, 1657910), (26, 828955), (65, 331582), (130, 165791), (317, 67990), (523, 41210), (634, 33995), (1046, 20605), (1585, 13598), (2615, 8242), (3170, 6799), (4121, 5230)]