31427487

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12791}}^1$

素因数の和:12820

約数の個数: 32

約数和(自身を含む): 57308160

約数和(自身を除く): 25880673

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 12791, 38373, 89537, 115119, 166283, 268611, 345357, 498849, 805833, 1163981, 1496547, 2417499, 3491943, 4489641, 10475829, 31427487]

約数ペア:

[(1, 31427487), (3, 10475829), (7, 4489641), (9, 3491943), (13, 2417499), (21, 1496547), (27, 1163981), (39, 805833), (63, 498849), (91, 345357), (117, 268611), (189, 166283), (273, 115119), (351, 89537), (819, 38373), (2457, 12791)]