21387924

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{16057}}^1$

素因数の和:16104

約数の個数: 36

約数和(自身を含む): 55528564

約数和(自身を除く): 34140640

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 16057, 32114, 48171, 64228, 96342, 144513, 192684, 289026, 578052, 594109, 1188218, 1782327, 2376436, 3564654, 5346981, 7129308, 10693962, 21387924]

約数ペア:

[(1, 21387924), (2, 10693962), (3, 7129308), (4, 5346981), (6, 3564654), (9, 2376436), (12, 1782327), (18, 1188218), (36, 594109), (37, 578052), (74, 289026), (111, 192684), (148, 144513), (222, 96342), (333, 64228), (444, 48171), (666, 32114), (1332, 16057)]