21496475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 35831040

約数和(自身を除く): 14334565

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 859, 1001, 1925, 2275, 3575, 4295, 5005, 6013, 9449, 11167, 21475, 25025, 30065, 47245, 55835, 66143, 78169, 122837, 150325, 236225, 279175, 330715, 390845, 614185, 859859, 1653575, 1954225, 3070925, 4299295, 21496475]

約数ペア:

[(1, 21496475), (5, 4299295), (7, 3070925), (11, 1954225), (13, 1653575), (25, 859859), (35, 614185), (55, 390845), (65, 330715), (77, 279175), (91, 236225), (143, 150325), (175, 122837), (275, 78169), (325, 66143), (385, 55835), (455, 47245), (715, 30065), (859, 25025), (1001, 21475), (1925, 11167), (2275, 9449), (3575, 6013), (4295, 5005)]