3908205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 8161920

約数和(自身を除く): 4253715

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 653, 665, 855, 1197, 1959, 1995, 3265, 4571, 5877, 5985, 9795, 12407, 13713, 22855, 29385, 37221, 41139, 62035, 68565, 86849, 111663, 186105, 205695, 260547, 434245, 558315, 781641, 1302735, 3908205]

約数ペア:

[(1, 3908205), (3, 1302735), (5, 781641), (7, 558315), (9, 434245), (15, 260547), (19, 205695), (21, 186105), (35, 111663), (45, 86849), (57, 68565), (63, 62035), (95, 41139), (105, 37221), (133, 29385), (171, 22855), (285, 13713), (315, 12407), (399, 9795), (653, 5985), (665, 5877), (855, 4571), (1197, 3265), (1959, 1995)]