20892495

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5639}}^1$

素因数の和:5679

約数の個数: 32

約数和(自身を含む): 37900800

約数和(自身を除く): 17008305

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 5639, 16917, 28195, 73307, 84585, 107141, 219921, 321423, 366535, 535705, 1099605, 1392833, 1607115, 4178499, 6964165, 20892495]

約数ペア:

[(1, 20892495), (3, 6964165), (5, 4178499), (13, 1607115), (15, 1392833), (19, 1099605), (39, 535705), (57, 366535), (65, 321423), (95, 219921), (195, 107141), (247, 84585), (285, 73307), (741, 28195), (1235, 16917), (3705, 5639)]