20551605

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 34268160

約数和(自身を除く): 13716555

約数列:

[1, 3, 5, 15, 31, 93, 155, 193, 229, 465, 579, 687, 965, 1145, 2895, 3435, 5983, 7099, 17949, 21297, 29915, 35495, 44197, 89745, 106485, 132591, 220985, 662955, 1370107, 4110321, 6850535, 20551605]

約数ペア:

[(1, 20551605), (3, 6850535), (5, 4110321), (15, 1370107), (31, 662955), (93, 220985), (155, 132591), (193, 106485), (229, 89745), (465, 44197), (579, 35495), (687, 29915), (965, 21297), (1145, 17949), (2895, 7099), (3435, 5983)]