18649215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 16731585

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 449, 585, 639, 923, 1065, 1347, 2245, 2769, 3195, 4041, 4615, 5837, 6735, 8307, 13845, 17511, 20205, 29185, 31879, 41535, 52533, 87555, 95637, 159395, 262665, 286911, 414427, 478185, 1243281, 1434555, 2072135, 3729843, 6216405, 18649215]

約数ペア:

[(1, 18649215), (3, 6216405), (5, 3729843), (9, 2072135), (13, 1434555), (15, 1243281), (39, 478185), (45, 414427), (65, 286911), (71, 262665), (117, 159395), (195, 95637), (213, 87555), (355, 52533), (449, 41535), (585, 31879), (639, 29185), (923, 20205), (1065, 17511), (1347, 13845), (2245, 8307), (2769, 6735), (3195, 5837), (4041, 4615)]