21005932012

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1\times {\mathrm{7949}}^1$

素因数の和:8626

約数の個数: 48

約数和(自身を含む): 40108068000

約数和(自身を除く): 19102135988

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 571, 1142, 1157, 2284, 2314, 4628, 7423, 7949, 14846, 15898, 29692, 31796, 50819, 101638, 103337, 203276, 206674, 413348, 660647, 707461, 1321294, 1414922, 2642588, 2829844, 4538879, 9077758, 9196993, 18155516, 18393986, 36787972, 59005427, 118010854, 236021708, 403960231, 807920462, 1615840924, 5251483003, 10502966006, 21005932012]

約数ペア:

[(1, 21005932012), (2, 10502966006), (4, 5251483003), (13, 1615840924), (26, 807920462), (52, 403960231), (89, 236021708), (178, 118010854), (356, 59005427), (571, 36787972), (1142, 18393986), (1157, 18155516), (2284, 9196993), (2314, 9077758), (4628, 4538879), (7423, 2829844), (7949, 2642588), (14846, 1414922), (15898, 1321294), (29692, 707461), (31796, 660647), (50819, 413348), (101638, 206674), (103337, 203276)]