18487761

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 8365359

約数列:

[1, 3, 29, 41, 71, 73, 87, 123, 213, 219, 1189, 2059, 2117, 2911, 2993, 3567, 5183, 6177, 6351, 8733, 8979, 15549, 84419, 86797, 150307, 212503, 253257, 260391, 450921, 637509, 6162587, 18487761]

約数ペア:

[(1, 18487761), (3, 6162587), (29, 637509), (41, 450921), (71, 260391), (73, 253257), (87, 212503), (123, 150307), (213, 86797), (219, 84419), (1189, 15549), (2059, 8979), (2117, 8733), (2911, 6351), (2993, 6177), (3567, 5183)]