21625175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 32997888

約数和(自身を除く): 11372713

約数列:

[1, 5, 11, 13, 23, 25, 55, 65, 115, 143, 253, 263, 275, 299, 325, 575, 715, 1265, 1315, 1495, 2893, 3289, 3419, 3575, 6049, 6325, 6575, 7475, 14465, 16445, 17095, 30245, 37609, 66539, 72325, 78637, 82225, 85475, 151225, 188045, 332695, 393185, 865007, 940225, 1663475, 1965925, 4325035, 21625175]

約数ペア:

[(1, 21625175), (5, 4325035), (11, 1965925), (13, 1663475), (23, 940225), (25, 865007), (55, 393185), (65, 332695), (115, 188045), (143, 151225), (253, 85475), (263, 82225), (275, 78637), (299, 72325), (325, 66539), (575, 37609), (715, 30245), (1265, 17095), (1315, 16445), (1495, 14465), (2893, 7475), (3289, 6575), (3419, 6325), (3575, 6049)]