213791295

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{1019}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 348986880

約数和(自身を除く): 135195585

約数列:

[1, 3, 5, 15, 71, 197, 213, 355, 591, 985, 1019, 1065, 2955, 3057, 5095, 13987, 15285, 41961, 69935, 72349, 200743, 209805, 217047, 361745, 602229, 1003715, 1085235, 3011145, 14252753, 42758259, 71263765, 213791295]

約数ペア:

[(1, 213791295), (3, 71263765), (5, 42758259), (15, 14252753), (71, 3011145), (197, 1085235), (213, 1003715), (355, 602229), (591, 361745), (985, 217047), (1019, 209805), (1065, 200743), (2955, 72349), (3057, 69935), (5095, 41961), (13987, 15285)]