211715973

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 359199360

約数和(自身を除く): 147483387

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 163, 371, 389, 477, 489, 1113, 1141, 1167, 1467, 2723, 3339, 3423, 3501, 8169, 8639, 10269, 20617, 24507, 25917, 60473, 61851, 63407, 77751, 144319, 181419, 185553, 190221, 432957, 443849, 544257, 570663, 1298871, 1331547, 3360571, 3994641, 10081713, 23523997, 30245139, 70571991, 211715973]

約数ペア:

[(1, 211715973), (3, 70571991), (7, 30245139), (9, 23523997), (21, 10081713), (53, 3994641), (63, 3360571), (159, 1331547), (163, 1298871), (371, 570663), (389, 544257), (477, 443849), (489, 432957), (1113, 190221), (1141, 185553), (1167, 181419), (1467, 144319), (2723, 77751), (3339, 63407), (3423, 61851), (3501, 60473), (8169, 25917), (8639, 24507), (10269, 20617)]