21209544

素因数分解:

$2^3\times 3^2\times {\mathrm{271}}^1\times {\mathrm{1087}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 57707520

約数和(自身を除く): 36497976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 271, 542, 813, 1084, 1087, 1626, 2168, 2174, 2439, 3252, 3261, 4348, 4878, 6504, 6522, 8696, 9756, 9783, 13044, 19512, 19566, 26088, 39132, 78264, 294577, 589154, 883731, 1178308, 1767462, 2356616, 2651193, 3534924, 5302386, 7069848, 10604772, 21209544]

約数ペア:

[(1, 21209544), (2, 10604772), (3, 7069848), (4, 5302386), (6, 3534924), (8, 2651193), (9, 2356616), (12, 1767462), (18, 1178308), (24, 883731), (36, 589154), (72, 294577), (271, 78264), (542, 39132), (813, 26088), (1084, 19566), (1087, 19512), (1626, 13044), (2168, 9783), (2174, 9756), (2439, 8696), (3252, 6522), (3261, 6504), (4348, 4878)]