21171135

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 34864128

約数和(自身を除く): 13692993

約数列:

[1, 3, 5, 15, 71, 103, 193, 213, 309, 355, 515, 579, 965, 1065, 1545, 2895, 7313, 13703, 19879, 21939, 36565, 41109, 59637, 68515, 99395, 109695, 205545, 298185, 1411409, 4234227, 7057045, 21171135]

約数ペア:

[(1, 21171135), (3, 7057045), (5, 4234227), (15, 1411409), (71, 298185), (103, 205545), (193, 109695), (213, 99395), (309, 68515), (355, 59637), (515, 41109), (579, 36565), (965, 21939), (1065, 19879), (1545, 13703), (2895, 7313)]