16813725

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 29289792

約数和(自身を除く): 12476067

約数列:

[1, 3, 5, 15, 25, 37, 73, 75, 83, 111, 185, 219, 249, 365, 415, 555, 925, 1095, 1245, 1825, 2075, 2701, 2775, 3071, 5475, 6059, 6225, 8103, 9213, 13505, 15355, 18177, 30295, 40515, 46065, 67525, 76775, 90885, 151475, 202575, 224183, 230325, 454425, 672549, 1120915, 3362745, 5604575, 16813725]

約数ペア:

[(1, 16813725), (3, 5604575), (5, 3362745), (15, 1120915), (25, 672549), (37, 454425), (73, 230325), (75, 224183), (83, 202575), (111, 151475), (185, 90885), (219, 76775), (249, 67525), (365, 46065), (415, 40515), (555, 30295), (925, 18177), (1095, 15355), (1245, 13505), (1825, 9213), (2075, 8103), (2701, 6225), (2775, 6059), (3071, 5475)]