21580542

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 49842000

約数和(自身を除く): 28261458

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 534, 709, 801, 1418, 1602, 1691, 2127, 3382, 4254, 5073, 6381, 10146, 12762, 13471, 15219, 26942, 30438, 40413, 63101, 80826, 121239, 126202, 189303, 242478, 378606, 567909, 1135818, 1198919, 2397838, 3596757, 7193514, 10790271, 21580542]

約数ペア:

[(1, 21580542), (2, 10790271), (3, 7193514), (6, 3596757), (9, 2397838), (18, 1198919), (19, 1135818), (38, 567909), (57, 378606), (89, 242478), (114, 189303), (171, 126202), (178, 121239), (267, 80826), (342, 63101), (534, 40413), (709, 30438), (801, 26942), (1418, 15219), (1602, 13471), (1691, 12762), (2127, 10146), (3382, 6381), (4254, 5073)]