21014240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10103}}^1$

素因数の和:10131

約数の個数: 48

約数和(自身を含む): 53470368

約数和(自身を除く): 32456128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 10103, 20206, 40412, 50515, 80824, 101030, 131339, 161648, 202060, 262678, 323296, 404120, 525356, 656695, 808240, 1050712, 1313390, 1616480, 2101424, 2626780, 4202848, 5253560, 10507120, 21014240]

約数ペア:

[(1, 21014240), (2, 10507120), (4, 5253560), (5, 4202848), (8, 2626780), (10, 2101424), (13, 1616480), (16, 1313390), (20, 1050712), (26, 808240), (32, 656695), (40, 525356), (52, 404120), (65, 323296), (80, 262678), (104, 202060), (130, 161648), (160, 131339), (208, 101030), (260, 80824), (416, 50515), (520, 40412), (1040, 20206), (2080, 10103)]