31367721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{541}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 52448256

約数和(自身を除く): 21080535

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 251, 541, 753, 1623, 1757, 2761, 3787, 5271, 5951, 8283, 11361, 17853, 19327, 41657, 57981, 124971, 135791, 407373, 950537, 1493701, 2851611, 4481103, 10455907, 31367721]

約数ペア:

[(1, 31367721), (3, 10455907), (7, 4481103), (11, 2851611), (21, 1493701), (33, 950537), (77, 407373), (231, 135791), (251, 124971), (541, 57981), (753, 41657), (1623, 19327), (1757, 17853), (2761, 11361), (3787, 8283), (5271, 5951)]