21401848

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2819}}^1$

素因数の和:2911

約数の個数: 32

約数和(自身を含む): 43822800

約数和(自身を除く): 22420952

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2819, 3796, 5638, 7592, 11276, 22552, 36647, 73294, 146588, 205787, 293176, 411574, 823148, 1646296, 2675231, 5350462, 10700924, 21401848]

約数ペア:

[(1, 21401848), (2, 10700924), (4, 5350462), (8, 2675231), (13, 1646296), (26, 823148), (52, 411574), (73, 293176), (104, 205787), (146, 146588), (292, 73294), (584, 36647), (949, 22552), (1898, 11276), (2819, 7592), (3796, 5638)]