71206947

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2647}}^1$

素因数の和:2728

約数の個数: 36

約数和(自身を含む): 121654416

約数和(自身を除く): 50447469

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1281, 2647, 2989, 3843, 7941, 8967, 18529, 23823, 26901, 55587, 129703, 161467, 166761, 389109, 484401, 1130269, 1167327, 1453203, 3390807, 7911883, 10172421, 23735649, 71206947]

約数ペア:

[(1, 71206947), (3, 23735649), (7, 10172421), (9, 7911883), (21, 3390807), (49, 1453203), (61, 1167327), (63, 1130269), (147, 484401), (183, 389109), (427, 166761), (441, 161467), (549, 129703), (1281, 55587), (2647, 26901), (2989, 23823), (3843, 18529), (7941, 8967)]