21316204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 46328128

約数和(自身を除く): 25011924

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 157, 182, 314, 364, 373, 628, 746, 1099, 1492, 2041, 2198, 2611, 4082, 4396, 4849, 5222, 8164, 9698, 10444, 14287, 19396, 28574, 33943, 57148, 58561, 67886, 117122, 135772, 234244, 409927, 761293, 819854, 1522586, 1639708, 3045172, 5329051, 10658102, 21316204]

約数ペア:

[(1, 21316204), (2, 10658102), (4, 5329051), (7, 3045172), (13, 1639708), (14, 1522586), (26, 819854), (28, 761293), (52, 409927), (91, 234244), (157, 135772), (182, 117122), (314, 67886), (364, 58561), (373, 57148), (628, 33943), (746, 28574), (1099, 19396), (1492, 14287), (2041, 10444), (2198, 9698), (2611, 8164), (4082, 5222), (4396, 4849)]