398115879

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1\times {\mathrm{563}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 614498304

約数和(自身を除く): 216382425

約数列:

[1, 3, 7, 21, 151, 223, 453, 563, 669, 1057, 1561, 1689, 3171, 3941, 4683, 11823, 33673, 85013, 101019, 125549, 235711, 255039, 376647, 595091, 707133, 878843, 1785273, 2636529, 18957899, 56873697, 132705293, 398115879]

約数ペア:

[(1, 398115879), (3, 132705293), (7, 56873697), (21, 18957899), (151, 2636529), (223, 1785273), (453, 878843), (563, 707133), (669, 595091), (1057, 376647), (1561, 255039), (1689, 235711), (3171, 125549), (3941, 101019), (4683, 85013), (11823, 33673)]