21868055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 8613865

約数列:

[1, 5, 11, 23, 55, 59, 115, 253, 293, 295, 649, 1265, 1357, 1465, 3223, 3245, 6739, 6785, 14927, 16115, 17287, 33695, 74129, 74635, 86435, 190157, 370645, 397601, 950785, 1988005, 4373611, 21868055]

約数ペア:

[(1, 21868055), (5, 4373611), (11, 1988005), (23, 950785), (55, 397601), (59, 370645), (115, 190157), (253, 86435), (293, 74635), (295, 74129), (649, 33695), (1265, 17287), (1357, 16115), (1465, 14927), (3223, 6785), (3245, 6739)]