18663795

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15930765

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 83, 95, 171, 249, 263, 285, 415, 747, 789, 855, 1245, 1315, 1577, 2367, 3735, 3945, 4731, 4997, 7885, 11835, 14193, 14991, 21829, 23655, 24985, 44973, 65487, 70965, 74955, 109145, 196461, 224865, 327435, 414751, 982305, 1244253, 2073755, 3732759, 6221265, 18663795]

約数ペア:

[(1, 18663795), (3, 6221265), (5, 3732759), (9, 2073755), (15, 1244253), (19, 982305), (45, 414751), (57, 327435), (83, 224865), (95, 196461), (171, 109145), (249, 74955), (263, 70965), (285, 65487), (415, 44973), (747, 24985), (789, 23655), (855, 21829), (1245, 14991), (1315, 14193), (1577, 11835), (2367, 7885), (3735, 4997), (3945, 4731)]