20354145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1301}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 17143455

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 149, 447, 745, 1043, 1301, 2235, 3129, 3903, 5215, 6505, 9107, 15645, 19515, 27321, 45535, 136605, 193849, 581547, 969245, 1356943, 2907735, 4070829, 6784715, 20354145]

約数ペア:

[(1, 20354145), (3, 6784715), (5, 4070829), (7, 2907735), (15, 1356943), (21, 969245), (35, 581547), (105, 193849), (149, 136605), (447, 45535), (745, 27321), (1043, 19515), (1301, 15645), (2235, 9107), (3129, 6505), (3903, 5215)]