21729706

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14195414

約数列:

[1, 2, 17, 34, 43, 86, 89, 167, 178, 334, 731, 1462, 1513, 2839, 3026, 3827, 5678, 7181, 7654, 14362, 14863, 29726, 65059, 122077, 130118, 244154, 252671, 505342, 639109, 1278218, 10864853, 21729706]

約数ペア:

[(1, 21729706), (2, 10864853), (17, 1278218), (34, 639109), (43, 505342), (86, 252671), (89, 244154), (167, 130118), (178, 122077), (334, 65059), (731, 29726), (1462, 14863), (1513, 14362), (2839, 7654), (3026, 7181), (3827, 5678)]