19881376

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{13219}}^1$

素因数の和:13276

約数の個数: 24

約数和(自身を含む): 39977280

約数和(自身を除く): 20095904

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 188, 376, 752, 1504, 13219, 26438, 52876, 105752, 211504, 423008, 621293, 1242586, 2485172, 4970344, 9940688, 19881376]

約数ペア:

[(1, 19881376), (2, 9940688), (4, 4970344), (8, 2485172), (16, 1242586), (32, 621293), (47, 423008), (94, 211504), (188, 105752), (376, 52876), (752, 26438), (1504, 13219)]