21859020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121439}}^1$

素因数の和:121454

約数の個数: 36

約数和(自身を含む): 66306240

約数和(自身を除く): 44447220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121439, 242878, 364317, 485756, 607195, 728634, 1092951, 1214390, 1457268, 1821585, 2185902, 2428780, 3643170, 4371804, 5464755, 7286340, 10929510, 21859020]

約数ペア:

[(1, 21859020), (2, 10929510), (3, 7286340), (4, 5464755), (5, 4371804), (6, 3643170), (9, 2428780), (10, 2185902), (12, 1821585), (15, 1457268), (18, 1214390), (20, 1092951), (30, 728634), (36, 607195), (45, 485756), (60, 364317), (90, 242878), (180, 121439)]