21000306616

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{878821}}^1$

素因数の和:878959

約数の個数: 32

約数和(自身を含む): 41128869600

約数和(自身を除く): 20128562984

約数列:

[1, 2, 4, 8, 29, 58, 103, 116, 206, 232, 412, 824, 2987, 5974, 11948, 23896, 878821, 1757642, 3515284, 7030568, 25485809, 50971618, 90518563, 101943236, 181037126, 203886472, 362074252, 724148504, 2625038327, 5250076654, 10500153308, 21000306616]

約数ペア:

[(1, 21000306616), (2, 10500153308), (4, 5250076654), (8, 2625038327), (29, 724148504), (58, 362074252), (103, 203886472), (116, 181037126), (206, 101943236), (232, 90518563), (412, 50971618), (824, 25485809), (2987, 7030568), (5974, 3515284), (11948, 1757642), (23896, 878821)]