18991713

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 28038528

約数和(自身を除く): 9046815

約数列:

[1, 3, 13, 39, 47, 141, 169, 507, 611, 797, 1833, 2391, 7943, 10361, 23829, 31083, 37459, 112377, 134693, 404079, 486967, 1460901, 6330571, 18991713]

約数ペア:

[(1, 18991713), (3, 6330571), (13, 1460901), (39, 486967), (47, 404079), (141, 134693), (169, 112377), (507, 37459), (611, 31083), (797, 23829), (1833, 10361), (2391, 7943)]