21298164

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{857}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 52852800

約数和(自身を除く): 31554636

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 109, 114, 218, 228, 327, 436, 654, 857, 1308, 1714, 2071, 2571, 3428, 4142, 5142, 6213, 8284, 10284, 12426, 16283, 24852, 32566, 48849, 65132, 93413, 97698, 186826, 195396, 280239, 373652, 560478, 1120956, 1774847, 3549694, 5324541, 7099388, 10649082, 21298164]

約数ペア:

[(1, 21298164), (2, 10649082), (3, 7099388), (4, 5324541), (6, 3549694), (12, 1774847), (19, 1120956), (38, 560478), (57, 373652), (76, 280239), (109, 195396), (114, 186826), (218, 97698), (228, 93413), (327, 65132), (436, 48849), (654, 32566), (857, 24852), (1308, 16283), (1714, 12426), (2071, 10284), (2571, 8284), (3428, 6213), (4142, 5142)]