21498796

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1033}}^1$

素因数の和:1102

約数の個数: 36

約数和(自身を含む): 42356776

約数和(自身を除く): 20857980

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1033, 1892, 2066, 4132, 5203, 10406, 11363, 20812, 22726, 44419, 45452, 88838, 124993, 177676, 249986, 488609, 499972, 977218, 1954436, 5374699, 10749398, 21498796]

約数ペア:

[(1, 21498796), (2, 10749398), (4, 5374699), (11, 1954436), (22, 977218), (43, 499972), (44, 488609), (86, 249986), (121, 177676), (172, 124993), (242, 88838), (473, 45452), (484, 44419), (946, 22726), (1033, 20812), (1892, 11363), (2066, 10406), (4132, 5203)]