17951973

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 26906880

約数和(自身を除く): 8954907

約数列:

[1, 3, 13, 39, 41, 103, 109, 123, 309, 327, 533, 1339, 1417, 1599, 4017, 4223, 4251, 4469, 11227, 12669, 13407, 33681, 54899, 58097, 145951, 164697, 174291, 437853, 460307, 1380921, 5983991, 17951973]

約数ペア:

[(1, 17951973), (3, 5983991), (13, 1380921), (39, 460307), (41, 437853), (103, 174291), (109, 164697), (123, 145951), (309, 58097), (327, 54899), (533, 33681), (1339, 13407), (1417, 12669), (1599, 11227), (4017, 4469), (4223, 4251)]