18946785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 64

約数和(自身を含む): 36400896

約数和(自身を除く): 17454111

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 73, 121, 143, 165, 195, 219, 363, 365, 429, 605, 715, 803, 949, 1095, 1331, 1573, 1815, 2145, 2409, 2847, 3993, 4015, 4719, 4745, 6655, 7865, 8833, 10439, 12045, 14235, 17303, 19965, 23595, 26499, 31317, 44165, 51909, 52195, 86515, 97163, 114829, 132495, 156585, 259545, 291489, 344487, 485815, 574145, 1263119, 1457445, 1722435, 3789357, 6315595, 18946785]

約数ペア:

[(1, 18946785), (3, 6315595), (5, 3789357), (11, 1722435), (13, 1457445), (15, 1263119), (33, 574145), (39, 485815), (55, 344487), (65, 291489), (73, 259545), (121, 156585), (143, 132495), (165, 114829), (195, 97163), (219, 86515), (363, 52195), (365, 51909), (429, 44165), (605, 31317), (715, 26499), (803, 23595), (949, 19965), (1095, 17303), (1331, 14235), (1573, 12045), (1815, 10439), (2145, 8833), (2409, 7865), (2847, 6655), (3993, 4745), (4015, 4719)]