81820206

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{38851}}^1$

素因数の和:38878

約数の個数: 40

約数和(自身を含む): 197445864

約数和(自身を除く): 115625658

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 38851, 77702, 116553, 233106, 349659, 505063, 699318, 1010126, 1048977, 1515189, 2097954, 3030378, 3146931, 4545567, 6293862, 9091134, 13636701, 27273402, 40910103, 81820206]

約数ペア:

[(1, 81820206), (2, 40910103), (3, 27273402), (6, 13636701), (9, 9091134), (13, 6293862), (18, 4545567), (26, 3146931), (27, 3030378), (39, 2097954), (54, 1515189), (78, 1048977), (81, 1010126), (117, 699318), (162, 505063), (234, 349659), (351, 233106), (702, 116553), (1053, 77702), (2106, 38851)]