21166695

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 40738464

約数和(自身を除く): 19571769

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 61, 99, 165, 183, 305, 495, 549, 671, 701, 915, 2013, 2103, 2745, 3355, 3505, 6039, 6309, 7711, 10065, 10515, 23133, 30195, 31545, 38555, 42761, 69399, 115665, 128283, 213805, 346995, 384849, 470371, 641415, 1411113, 1924245, 2351855, 4233339, 7055565, 21166695]

約数ペア:

[(1, 21166695), (3, 7055565), (5, 4233339), (9, 2351855), (11, 1924245), (15, 1411113), (33, 641415), (45, 470371), (55, 384849), (61, 346995), (99, 213805), (165, 128283), (183, 115665), (305, 69399), (495, 42761), (549, 38555), (671, 31545), (701, 30195), (915, 23133), (2013, 10515), (2103, 10065), (2745, 7711), (3355, 6309), (3505, 6039)]