20778563778

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{587}}^1\times {\mathrm{120401}}^1$

素因数の和:121007

約数の個数: 48

約数和(自身を含む): 48424721184

約数和(自身を除く): 27646157406

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 587, 1174, 1761, 3522, 4109, 8218, 12327, 24654, 28763, 57526, 86289, 120401, 172578, 240802, 361203, 722406, 842807, 1685614, 2528421, 5056842, 5899649, 11799298, 17698947, 35397894, 70675387, 141350774, 212026161, 424052322, 494727709, 989455418, 1484183127, 2968366254, 3463093963, 6926187926, 10389281889, 20778563778]

約数ペア:

[(1, 20778563778), (2, 10389281889), (3, 6926187926), (6, 3463093963), (7, 2968366254), (14, 1484183127), (21, 989455418), (42, 494727709), (49, 424052322), (98, 212026161), (147, 141350774), (294, 70675387), (587, 35397894), (1174, 17698947), (1761, 11799298), (3522, 5899649), (4109, 5056842), (8218, 2528421), (12327, 1685614), (24654, 842807), (28763, 722406), (57526, 361203), (86289, 240802), (120401, 172578)]