21516270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31183}}^1$

素因数の和:31216

約数の個数: 32

約数和(自身を含む): 53885952

約数和(自身を除く): 32369682

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31183, 62366, 93549, 155915, 187098, 311830, 467745, 717209, 935490, 1434418, 2151627, 3586045, 4303254, 7172090, 10758135, 21516270]

約数ペア:

[(1, 21516270), (2, 10758135), (3, 7172090), (5, 4303254), (6, 3586045), (10, 2151627), (15, 1434418), (23, 935490), (30, 717209), (46, 467745), (69, 311830), (115, 187098), (138, 155915), (230, 93549), (345, 62366), (690, 31183)]