18876267

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 28996160

約数和(自身を除く): 10119893

約数列:

[1, 3, 9, 27, 61, 73, 157, 183, 219, 471, 549, 657, 1413, 1647, 1971, 4239, 4453, 9577, 11461, 13359, 28731, 34383, 40077, 86193, 103149, 120231, 258579, 309447, 699121, 2097363, 6292089, 18876267]

約数ペア:

[(1, 18876267), (3, 6292089), (9, 2097363), (27, 699121), (61, 309447), (73, 258579), (157, 120231), (183, 103149), (219, 86193), (471, 40077), (549, 34383), (657, 28731), (1413, 13359), (1647, 11461), (1971, 9577), (4239, 4453)]