21693740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 47688480

約数和(自身を除く): 25994740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 331, 452, 565, 580, 662, 1130, 1324, 1655, 2260, 3277, 3310, 6554, 6620, 9599, 13108, 16385, 19198, 32770, 37403, 38396, 47995, 65540, 74806, 95990, 149612, 187015, 191980, 374030, 748060, 1084687, 2169374, 4338748, 5423435, 10846870, 21693740]

約数ペア:

[(1, 21693740), (2, 10846870), (4, 5423435), (5, 4338748), (10, 2169374), (20, 1084687), (29, 748060), (58, 374030), (113, 191980), (116, 187015), (145, 149612), (226, 95990), (290, 74806), (331, 65540), (452, 47995), (565, 38396), (580, 37403), (662, 32770), (1130, 19198), (1324, 16385), (1655, 13108), (2260, 9599), (3277, 6620), (3310, 6554)]