20454756

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:873

約数の個数: 72

約数和(自身を含む): 56881440

約数和(自身を除く): 36426684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 49, 84, 86, 98, 129, 147, 172, 196, 258, 294, 301, 516, 588, 602, 809, 903, 1204, 1618, 1806, 2107, 2427, 3236, 3612, 4214, 4854, 5663, 6321, 8428, 9708, 11326, 12642, 16989, 22652, 25284, 33978, 34787, 39641, 67956, 69574, 79282, 104361, 118923, 139148, 158564, 208722, 237846, 243509, 417444, 475692, 487018, 730527, 974036, 1461054, 1704563, 2922108, 3409126, 5113689, 6818252, 10227378, 20454756]

約数ペア:

[(1, 20454756), (2, 10227378), (3, 6818252), (4, 5113689), (6, 3409126), (7, 2922108), (12, 1704563), (14, 1461054), (21, 974036), (28, 730527), (42, 487018), (43, 475692), (49, 417444), (84, 243509), (86, 237846), (98, 208722), (129, 158564), (147, 139148), (172, 118923), (196, 104361), (258, 79282), (294, 69574), (301, 67956), (516, 39641), (588, 34787), (602, 33978), (809, 25284), (903, 22652), (1204, 16989), (1618, 12642), (1806, 11326), (2107, 9708), (2427, 8428), (3236, 6321), (3612, 5663), (4214, 4854)]