20461725

素因数分解:

$3^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:658

約数の個数: 36

約数和(自身を含む): 36908352

約数和(自身を除く): 16446627

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 211, 225, 431, 633, 1055, 1293, 1899, 2155, 3165, 3879, 5275, 6465, 9495, 10775, 15825, 19395, 32325, 47475, 90941, 96975, 272823, 454705, 818469, 1364115, 2273525, 4092345, 6820575, 20461725]

約数ペア:

[(1, 20461725), (3, 6820575), (5, 4092345), (9, 2273525), (15, 1364115), (25, 818469), (45, 454705), (75, 272823), (211, 96975), (225, 90941), (431, 47475), (633, 32325), (1055, 19395), (1293, 15825), (1899, 10775), (2155, 9495), (3165, 6465), (3879, 5275)]