21310185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1061}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 37110528

約数和(自身を除く): 15800343

約数列:

[1, 3, 5, 13, 15, 39, 65, 103, 195, 309, 515, 1061, 1339, 1545, 3183, 4017, 5305, 6695, 13793, 15915, 20085, 41379, 68965, 109283, 206895, 327849, 546415, 1420679, 1639245, 4262037, 7103395, 21310185]

約数ペア:

[(1, 21310185), (3, 7103395), (5, 4262037), (13, 1639245), (15, 1420679), (39, 546415), (65, 327849), (103, 206895), (195, 109283), (309, 68965), (515, 41379), (1061, 20085), (1339, 15915), (1545, 13793), (3183, 6695), (4017, 5305)]