21315190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1451}}^1$

素因数の和:1584

約数の個数: 32

約数和(自身を含む): 41713056

約数和(自身を除く): 20397866

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1451, 1469, 2902, 2938, 7255, 7345, 14510, 14690, 18863, 37726, 94315, 163963, 188630, 327926, 819815, 1639630, 2131519, 4263038, 10657595, 21315190]

約数ペア:

[(1, 21315190), (2, 10657595), (5, 4263038), (10, 2131519), (13, 1639630), (26, 819815), (65, 327926), (113, 188630), (130, 163963), (226, 94315), (565, 37726), (1130, 18863), (1451, 14690), (1469, 14510), (2902, 7345), (2938, 7255)]