16681815

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4261}}^1$

素因数の和:4304

約数の個数: 32

約数和(自身を含む): 30686400

約数和(自身を除く): 14004585

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 4261, 12783, 21305, 38349, 63915, 115047, 123569, 191745, 370707, 575235, 617845, 1112121, 1853535, 3336363, 5560605, 16681815]

約数ペア:

[(1, 16681815), (3, 5560605), (5, 3336363), (9, 1853535), (15, 1112121), (27, 617845), (29, 575235), (45, 370707), (87, 191745), (135, 123569), (145, 115047), (261, 63915), (435, 38349), (783, 21305), (1305, 12783), (3915, 4261)]