21000359605

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{7043}}^1\times {\mathrm{19237}}^1$

素因数の和:26316

約数の個数: 16

約数和(自身を含む): 26018394624

約数和(自身を除く): 5018035019

約数列:

[1, 5, 31, 155, 7043, 19237, 35215, 96185, 218333, 596347, 1091665, 2981735, 135486191, 677430955, 4200071921, 21000359605]

約数ペア:

[(1, 21000359605), (5, 4200071921), (31, 677430955), (155, 135486191), (7043, 2981735), (19237, 1091665), (35215, 596347), (96185, 218333)]