21260085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 21870795

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 79, 105, 165, 231, 233, 237, 385, 395, 553, 699, 869, 1155, 1165, 1185, 1631, 1659, 2563, 2607, 2765, 3495, 4345, 4893, 6083, 7689, 8155, 8295, 12815, 13035, 17941, 18249, 18407, 24465, 30415, 38445, 53823, 55221, 89705, 91245, 92035, 128849, 202477, 269115, 276105, 386547, 607431, 644245, 1012385, 1417339, 1932735, 3037155, 4252017, 7086695, 21260085]

約数ペア:

[(1, 21260085), (3, 7086695), (5, 4252017), (7, 3037155), (11, 1932735), (15, 1417339), (21, 1012385), (33, 644245), (35, 607431), (55, 386547), (77, 276105), (79, 269115), (105, 202477), (165, 128849), (231, 92035), (233, 91245), (237, 89705), (385, 55221), (395, 53823), (553, 38445), (699, 30415), (869, 24465), (1155, 18407), (1165, 18249), (1185, 17941), (1631, 13035), (1659, 12815), (2563, 8295), (2607, 8155), (2765, 7689), (3495, 6083), (4345, 4893)]