21989830

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 41264640

約数和(自身を除く): 19274810

約数列:

[1, 2, 5, 10, 29, 58, 145, 191, 290, 382, 397, 794, 955, 1910, 1985, 3970, 5539, 11078, 11513, 23026, 27695, 55390, 57565, 75827, 115130, 151654, 379135, 758270, 2198983, 4397966, 10994915, 21989830]

約数ペア:

[(1, 21989830), (2, 10994915), (5, 4397966), (10, 2198983), (29, 758270), (58, 379135), (145, 151654), (191, 115130), (290, 75827), (382, 57565), (397, 55390), (794, 27695), (955, 23026), (1910, 11513), (1985, 11078), (3970, 5539)]