21199806

素因数分解:

$2^1\times 3^5\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 48096048

約数和(自身を除く): 26896242

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 181, 241, 243, 362, 482, 486, 543, 723, 1086, 1446, 1629, 2169, 3258, 4338, 4887, 6507, 9774, 13014, 14661, 19521, 29322, 39042, 43621, 43983, 58563, 87242, 87966, 117126, 130863, 261726, 392589, 785178, 1177767, 2355534, 3533301, 7066602, 10599903, 21199806]

約数ペア:

[(1, 21199806), (2, 10599903), (3, 7066602), (6, 3533301), (9, 2355534), (18, 1177767), (27, 785178), (54, 392589), (81, 261726), (162, 130863), (181, 117126), (241, 87966), (243, 87242), (362, 58563), (482, 43983), (486, 43621), (543, 39042), (723, 29322), (1086, 19521), (1446, 14661), (1629, 13014), (2169, 9774), (3258, 6507), (4338, 4887)]