21200650

素因数分解:

$2^1\times 5^2\times {\mathrm{167}}^1\times {\mathrm{2539}}^1$

素因数の和:2718

約数の個数: 24

約数和(自身を含む): 39684960

約数和(自身を除く): 18484310

約数列:

[1, 2, 5, 10, 25, 50, 167, 334, 835, 1670, 2539, 4175, 5078, 8350, 12695, 25390, 63475, 126950, 424013, 848026, 2120065, 4240130, 10600325, 21200650]

約数ペア:

[(1, 21200650), (2, 10600325), (5, 4240130), (10, 2120065), (25, 848026), (50, 424013), (167, 126950), (334, 63475), (835, 25390), (1670, 12695), (2539, 8350), (4175, 5078)]