18378855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 35178624

約数和(自身を除く): 16799769

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 107, 165, 321, 347, 495, 535, 963, 1041, 1177, 1605, 1735, 3123, 3531, 3817, 4815, 5205, 5885, 10593, 11451, 15615, 17655, 19085, 34353, 37129, 52965, 57255, 111387, 171765, 185645, 334161, 408419, 556935, 1225257, 1670805, 2042095, 3675771, 6126285, 18378855]

約数ペア:

[(1, 18378855), (3, 6126285), (5, 3675771), (9, 2042095), (11, 1670805), (15, 1225257), (33, 556935), (45, 408419), (55, 334161), (99, 185645), (107, 171765), (165, 111387), (321, 57255), (347, 52965), (495, 37129), (535, 34353), (963, 19085), (1041, 17655), (1177, 15615), (1605, 11451), (1735, 10593), (3123, 5885), (3531, 5205), (3817, 4815)]