1247409

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 1976832

約数和(自身を除く): 729423

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 263, 279, 527, 789, 1581, 2367, 4471, 4743, 8153, 13413, 24459, 40239, 73377, 138601, 415803, 1247409]

約数ペア:

[(1, 1247409), (3, 415803), (9, 138601), (17, 73377), (31, 40239), (51, 24459), (93, 13413), (153, 8153), (263, 4743), (279, 4471), (527, 2367), (789, 1581)]