31398759

素因数分解:

$3^7\times 7^2\times {\mathrm{293}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 54966240

約数和(自身を除く): 23567481

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 293, 441, 567, 729, 879, 1323, 1701, 2051, 2187, 2637, 3969, 5103, 6153, 7911, 11907, 14357, 15309, 18459, 23733, 35721, 43071, 55377, 71199, 107163, 129213, 166131, 213597, 387639, 498393, 640791, 1162917, 1495179, 3488751, 4485537, 10466253, 31398759]

約数ペア:

[(1, 31398759), (3, 10466253), (7, 4485537), (9, 3488751), (21, 1495179), (27, 1162917), (49, 640791), (63, 498393), (81, 387639), (147, 213597), (189, 166131), (243, 129213), (293, 107163), (441, 71199), (567, 55377), (729, 43071), (879, 35721), (1323, 23733), (1701, 18459), (2051, 15309), (2187, 14357), (2637, 11907), (3969, 7911), (5103, 6153)]