39870621

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 69014400

約数和(自身を除く): 29143779

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 139, 157, 203, 261, 417, 471, 609, 973, 1099, 1251, 1413, 1827, 2919, 3297, 4031, 4553, 8757, 9891, 12093, 13659, 21823, 28217, 31871, 36279, 40977, 65469, 84651, 95613, 152761, 196407, 253953, 286839, 458283, 632867, 1374849, 1898601, 4430069, 5695803, 13290207, 39870621]

約数ペア:

[(1, 39870621), (3, 13290207), (7, 5695803), (9, 4430069), (21, 1898601), (29, 1374849), (63, 632867), (87, 458283), (139, 286839), (157, 253953), (203, 196407), (261, 152761), (417, 95613), (471, 84651), (609, 65469), (973, 40977), (1099, 36279), (1251, 31871), (1413, 28217), (1827, 21823), (2919, 13659), (3297, 12093), (4031, 9891), (4553, 8757)]