19878915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2281}}^1$

素因数の和:2379

約数の個数: 32

約数和(自身を含む): 36804096

約数和(自身を除く): 16925181

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2281, 2905, 6843, 8715, 11405, 15967, 34215, 47901, 79835, 189323, 239505, 567969, 946615, 1325261, 2839845, 3975783, 6626305, 19878915]

約数ペア:

[(1, 19878915), (3, 6626305), (5, 3975783), (7, 2839845), (15, 1325261), (21, 946615), (35, 567969), (83, 239505), (105, 189323), (249, 79835), (415, 47901), (581, 34215), (1245, 15967), (1743, 11405), (2281, 8715), (2905, 6843)]