20875215

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 35513280

約数和(自身を除く): 14638065

約数列:

[1, 3, 5, 15, 29, 37, 87, 111, 145, 185, 435, 555, 1073, 1297, 3219, 3891, 5365, 6485, 16095, 19455, 37613, 47989, 112839, 143967, 188065, 239945, 564195, 719835, 1391681, 4175043, 6958405, 20875215]

約数ペア:

[(1, 20875215), (3, 6958405), (5, 4175043), (15, 1391681), (29, 719835), (37, 564195), (87, 239945), (111, 188065), (145, 143967), (185, 112839), (435, 47989), (555, 37613), (1073, 19455), (1297, 16095), (3219, 6485), (3891, 5365)]