2780631

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 5091840

約数和(自身を除く): 2311209

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 101, 133, 161, 171, 207, 303, 399, 437, 483, 707, 909, 1197, 1311, 1449, 1919, 2121, 2323, 3059, 3933, 5757, 6363, 6969, 9177, 13433, 16261, 17271, 20907, 27531, 40299, 44137, 48783, 120897, 132411, 146349, 308959, 397233, 926877, 2780631]

約数ペア:

[(1, 2780631), (3, 926877), (7, 397233), (9, 308959), (19, 146349), (21, 132411), (23, 120897), (57, 48783), (63, 44137), (69, 40299), (101, 27531), (133, 20907), (161, 17271), (171, 16261), (207, 13433), (303, 9177), (399, 6969), (437, 6363), (483, 5757), (707, 3933), (909, 3059), (1197, 2323), (1311, 2121), (1449, 1919)]