29820213

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2029}}^1$

素因数の和:2129

約数の個数: 24

約数和(自身を含む): 45601920

約数和(自身を除く): 15781707

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1633, 2029, 4899, 6087, 14697, 18261, 46667, 140001, 144059, 420003, 432177, 1296531, 3313357, 9940071, 29820213]

約数ペア:

[(1, 29820213), (3, 9940071), (9, 3313357), (23, 1296531), (69, 432177), (71, 420003), (207, 144059), (213, 140001), (639, 46667), (1633, 18261), (2029, 14697), (4899, 6087)]