21341085

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{727}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 36341760

約数和(自身を除く): 15000675

約数列:

[1, 3, 5, 15, 19, 57, 95, 103, 285, 309, 515, 727, 1545, 1957, 2181, 3635, 5871, 9785, 10905, 13813, 29355, 41439, 69065, 74881, 207195, 224643, 374405, 1123215, 1422739, 4268217, 7113695, 21341085]

約数ペア:

[(1, 21341085), (3, 7113695), (5, 4268217), (15, 1422739), (19, 1123215), (57, 374405), (95, 224643), (103, 207195), (285, 74881), (309, 69065), (515, 41439), (727, 29355), (1545, 13813), (1957, 10905), (2181, 9785), (3635, 5871)]