81503901

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 130457600

約数和(自身を除く): 48953699

約数列:

[1, 3, 9, 19, 27, 57, 81, 127, 139, 171, 243, 381, 417, 513, 1143, 1251, 1539, 2413, 2641, 3429, 3753, 4617, 7239, 7923, 10287, 11259, 17653, 21717, 23769, 30861, 33777, 52959, 65151, 71307, 158877, 195453, 213921, 335407, 476631, 586359, 641763, 1006221, 1429893, 3018663, 4289679, 9055989, 27167967, 81503901]

約数ペア:

[(1, 81503901), (3, 27167967), (9, 9055989), (19, 4289679), (27, 3018663), (57, 1429893), (81, 1006221), (127, 641763), (139, 586359), (171, 476631), (243, 335407), (381, 213921), (417, 195453), (513, 158877), (1143, 71307), (1251, 65151), (1539, 52959), (2413, 33777), (2641, 30861), (3429, 23769), (3753, 21717), (4617, 17653), (7239, 11259), (7923, 10287)]