21083072

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 56

約数和(自身を含む): 43988736

約数和(自身を除く): 22905664

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 64, 86, 94, 163, 172, 188, 326, 344, 376, 652, 688, 752, 1304, 1376, 1504, 2021, 2608, 2752, 3008, 4042, 5216, 7009, 7661, 8084, 10432, 14018, 15322, 16168, 28036, 30644, 32336, 56072, 61288, 64672, 112144, 122576, 129344, 224288, 245152, 329423, 448576, 490304, 658846, 1317692, 2635384, 5270768, 10541536, 21083072]

約数ペア:

[(1, 21083072), (2, 10541536), (4, 5270768), (8, 2635384), (16, 1317692), (32, 658846), (43, 490304), (47, 448576), (64, 329423), (86, 245152), (94, 224288), (163, 129344), (172, 122576), (188, 112144), (326, 64672), (344, 61288), (376, 56072), (652, 32336), (688, 30644), (752, 28036), (1304, 16168), (1376, 15322), (1504, 14018), (2021, 10432), (2608, 8084), (2752, 7661), (3008, 7009), (4042, 5216)]