21196930

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1074

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18693950

約数列:

[1, 2, 5, 10, 37, 59, 74, 118, 185, 295, 370, 590, 971, 1942, 2183, 4366, 4855, 9710, 10915, 21830, 35927, 57289, 71854, 114578, 179635, 286445, 359270, 572890, 2119693, 4239386, 10598465, 21196930]

約数ペア:

[(1, 21196930), (2, 10598465), (5, 4239386), (10, 2119693), (37, 572890), (59, 359270), (74, 286445), (118, 179635), (185, 114578), (295, 71854), (370, 57289), (590, 35927), (971, 21830), (1942, 10915), (2183, 9710), (4366, 4855)]