18657483

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 10082613

約数列:

[1, 3, 13, 17, 39, 51, 107, 221, 263, 321, 663, 789, 1391, 1819, 3419, 4173, 4471, 5457, 10257, 13413, 23647, 28141, 58123, 70941, 84423, 174369, 365833, 478397, 1097499, 1435191, 6219161, 18657483]

約数ペア:

[(1, 18657483), (3, 6219161), (13, 1435191), (17, 1097499), (39, 478397), (51, 365833), (107, 174369), (221, 84423), (263, 70941), (321, 58123), (663, 28141), (789, 23647), (1391, 13413), (1819, 10257), (3419, 5457), (4173, 4471)]