18214905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 31390848

約数和(自身を除く): 13175943

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 305, 915, 1037, 1171, 3111, 3513, 5185, 5855, 15555, 17565, 19907, 59721, 71431, 99535, 214293, 298605, 357155, 1071465, 1214327, 3642981, 6071635, 18214905]

約数ペア:

[(1, 18214905), (3, 6071635), (5, 3642981), (15, 1214327), (17, 1071465), (51, 357155), (61, 298605), (85, 214293), (183, 99535), (255, 71431), (305, 59721), (915, 19907), (1037, 17565), (1171, 15555), (3111, 5855), (3513, 5185)]