21971176

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 42228000

約数和(自身を除く): 20256824

約数列:

[1, 2, 4, 8, 67, 134, 179, 229, 268, 358, 458, 536, 716, 916, 1432, 1832, 11993, 15343, 23986, 30686, 40991, 47972, 61372, 81982, 95944, 122744, 163964, 327928, 2746397, 5492794, 10985588, 21971176]

約数ペア:

[(1, 21971176), (2, 10985588), (4, 5492794), (8, 2746397), (67, 327928), (134, 163964), (179, 122744), (229, 95944), (268, 81982), (358, 61372), (458, 47972), (536, 40991), (716, 30686), (916, 23986), (1432, 15343), (1832, 11993)]