21101560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18191}}^1$

素因数の和:18231

約数の個数: 32

約数和(自身を含む): 49118400

約数和(自身を除く): 28016840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18191, 36382, 72764, 90955, 145528, 181910, 363820, 527539, 727640, 1055078, 2110156, 2637695, 4220312, 5275390, 10550780, 21101560]

約数ペア:

[(1, 21101560), (2, 10550780), (4, 5275390), (5, 4220312), (8, 2637695), (10, 2110156), (20, 1055078), (29, 727640), (40, 527539), (58, 363820), (116, 181910), (145, 145528), (232, 90955), (290, 72764), (580, 36382), (1160, 18191)]