28288533

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 48033216

約数和(自身を除く): 19744683

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 113, 131, 147, 273, 339, 393, 637, 791, 917, 1469, 1703, 1911, 2373, 2751, 4407, 5109, 5537, 6419, 10283, 11921, 14803, 16611, 19257, 30849, 35763, 44409, 71981, 83447, 103621, 192439, 215943, 250341, 310863, 577317, 725347, 1347073, 2176041, 4041219, 9429511, 28288533]

約数ペア:

[(1, 28288533), (3, 9429511), (7, 4041219), (13, 2176041), (21, 1347073), (39, 725347), (49, 577317), (91, 310863), (113, 250341), (131, 215943), (147, 192439), (273, 103621), (339, 83447), (393, 71981), (637, 44409), (791, 35763), (917, 30849), (1469, 19257), (1703, 16611), (1911, 14803), (2373, 11921), (2751, 10283), (4407, 6419), (5109, 5537)]