21586348

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^2\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 36

約数和(自身を含む): 44237200

約数和(自身を除く): 22650852

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 349, 658, 698, 1316, 1396, 2209, 2443, 4418, 4886, 8836, 9772, 15463, 16403, 30926, 32806, 61852, 65612, 114821, 229642, 459284, 770941, 1541882, 3083764, 5396587, 10793174, 21586348]

約数ペア:

[(1, 21586348), (2, 10793174), (4, 5396587), (7, 3083764), (14, 1541882), (28, 770941), (47, 459284), (94, 229642), (188, 114821), (329, 65612), (349, 61852), (658, 32806), (698, 30926), (1316, 16403), (1396, 15463), (2209, 9772), (2443, 8836), (4418, 4886)]