31309551

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12743}}^1$

素因数の和:12772

約数の個数: 32

約数和(自身を含む): 57093120

約数和(自身を除く): 25783569

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 12743, 38229, 89201, 114687, 165659, 267603, 344061, 496977, 802809, 1159613, 1490931, 2408427, 3478839, 4472793, 10436517, 31309551]

約数ペア:

[(1, 31309551), (3, 10436517), (7, 4472793), (9, 3478839), (13, 2408427), (21, 1490931), (27, 1159613), (39, 802809), (63, 496977), (91, 344061), (117, 267603), (189, 165659), (273, 114687), (351, 89201), (819, 38229), (2457, 12743)]