21913001

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 2970199

約数列:

[1, 11, 31, 179, 341, 359, 1969, 3949, 5549, 11129, 61039, 64261, 122419, 706871, 1992091, 21913001]

約数ペア:

[(1, 21913001), (11, 1992091), (31, 706871), (179, 122419), (341, 64261), (359, 61039), (1969, 11129), (3949, 5549)]