19638531

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 56

約数和(自身を含む): 33576960

約数和(自身を除く): 13938429

約数列:

[1, 3, 9, 11, 27, 31, 33, 79, 81, 93, 99, 237, 243, 279, 297, 341, 711, 729, 837, 869, 891, 1023, 2133, 2449, 2511, 2607, 2673, 3069, 6399, 7347, 7533, 7821, 8019, 9207, 19197, 22041, 22599, 23463, 26939, 27621, 57591, 66123, 70389, 80817, 82863, 198369, 211167, 242451, 248589, 595107, 633501, 727353, 1785321, 2182059, 6546177, 19638531]

約数ペア:

[(1, 19638531), (3, 6546177), (9, 2182059), (11, 1785321), (27, 727353), (31, 633501), (33, 595107), (79, 248589), (81, 242451), (93, 211167), (99, 198369), (237, 82863), (243, 80817), (279, 70389), (297, 66123), (341, 57591), (711, 27621), (729, 26939), (837, 23463), (869, 22599), (891, 22041), (1023, 19197), (2133, 9207), (2449, 8019), (2511, 7821), (2607, 7533), (2673, 7347), (3069, 6399)]