18025965

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 34070400

約数和(自身を除く): 16044435

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 727, 855, 1305, 1653, 2181, 2755, 3635, 4959, 6543, 8265, 10905, 13813, 21083, 24795, 32715, 41439, 63249, 69065, 105415, 124317, 189747, 207195, 316245, 400577, 621585, 948735, 1201731, 2002885, 3605193, 6008655, 18025965]

約数ペア:

[(1, 18025965), (3, 6008655), (5, 3605193), (9, 2002885), (15, 1201731), (19, 948735), (29, 621585), (45, 400577), (57, 316245), (87, 207195), (95, 189747), (145, 124317), (171, 105415), (261, 69065), (285, 63249), (435, 41439), (551, 32715), (727, 24795), (855, 21083), (1305, 13813), (1653, 10905), (2181, 8265), (2755, 6543), (3635, 4959)]