218019855

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{733}}^1$

素因数の和:1071

約数の個数: 32

約数和(自身を含む): 355138560

約数和(自身を除く): 137118705

約数列:

[1, 3, 5, 15, 79, 237, 251, 395, 733, 753, 1185, 1255, 2199, 3665, 3765, 10995, 19829, 57907, 59487, 99145, 173721, 183983, 289535, 297435, 551949, 868605, 919915, 2759745, 14534657, 43603971, 72673285, 218019855]

約数ペア:

[(1, 218019855), (3, 72673285), (5, 43603971), (15, 14534657), (79, 2759745), (237, 919915), (251, 868605), (395, 551949), (733, 297435), (753, 289535), (1185, 183983), (1255, 173721), (2199, 99145), (3665, 59487), (3765, 57907), (10995, 19829)]