21913365

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3343}}^1$

素因数の和:3393

約数の個数: 32

約数和(自身を含む): 38522880

約数和(自身を除く): 16609515

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3343, 6555, 10029, 16715, 50145, 63517, 76889, 190551, 230667, 317585, 384445, 952755, 1153335, 1460891, 4382673, 7304455, 21913365]

約数ペア:

[(1, 21913365), (3, 7304455), (5, 4382673), (15, 1460891), (19, 1153335), (23, 952755), (57, 384445), (69, 317585), (95, 230667), (115, 190551), (285, 76889), (345, 63517), (437, 50145), (1311, 16715), (2185, 10029), (3343, 6555)]