18928905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{74231}}^1$

素因数の和:74256

約数の個数: 16

約数和(自身を含む): 32068224

約数和(自身を除く): 13139319

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 74231, 222693, 371155, 1113465, 1261927, 3785781, 6309635, 18928905]

約数ペア:

[(1, 18928905), (3, 6309635), (5, 3785781), (15, 1261927), (17, 1113465), (51, 371155), (85, 222693), (255, 74231)]