20161305

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:827

約数の個数: 40

約数和(自身を含む): 36729792

約数和(自身を除く): 16568487

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 743, 1005, 1809, 2229, 3015, 3715, 5427, 6687, 9045, 11145, 20061, 27135, 33435, 49781, 60183, 100305, 149343, 248905, 300915, 448029, 746715, 1344087, 2240145, 4032261, 6720435, 20161305]

約数ペア:

[(1, 20161305), (3, 6720435), (5, 4032261), (9, 2240145), (15, 1344087), (27, 746715), (45, 448029), (67, 300915), (81, 248905), (135, 149343), (201, 100305), (335, 60183), (405, 49781), (603, 33435), (743, 27135), (1005, 20061), (1809, 11145), (2229, 9045), (3015, 6687), (3715, 5427)]