21105306

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{16993}}^1$

素因数の和:17027

約数の個数: 32

約数和(自身を含む): 48942720

約数和(自身を除く): 27837414

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 16993, 33986, 50979, 101958, 152937, 305874, 390839, 458811, 781678, 917622, 1172517, 2345034, 3517551, 7035102, 10552653, 21105306]

約数ペア:

[(1, 21105306), (2, 10552653), (3, 7035102), (6, 3517551), (9, 2345034), (18, 1172517), (23, 917622), (27, 781678), (46, 458811), (54, 390839), (69, 305874), (138, 152937), (207, 101958), (414, 50979), (621, 33986), (1242, 16993)]