12990996

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{3251}}^1$

素因数の和:3301

約数の個数: 48

約数和(自身を含む): 34601280

約数和(自身を除く): 21610284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3251, 3996, 6502, 9753, 13004, 19506, 29259, 39012, 58518, 87777, 117036, 120287, 175554, 240574, 351108, 360861, 481148, 721722, 1082583, 1443444, 2165166, 3247749, 4330332, 6495498, 12990996]

約数ペア:

[(1, 12990996), (2, 6495498), (3, 4330332), (4, 3247749), (6, 2165166), (9, 1443444), (12, 1082583), (18, 721722), (27, 481148), (36, 360861), (37, 351108), (54, 240574), (74, 175554), (108, 120287), (111, 117036), (148, 87777), (222, 58518), (333, 39012), (444, 29259), (666, 19506), (999, 13004), (1332, 9753), (1998, 6502), (3251, 3996)]