21539792

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43427}}^1$

素因数の和:43466

約数の個数: 20

約数和(自身を含む): 43080576

約数和(自身を除く): 21540784

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43427, 86854, 173708, 347416, 694832, 1346237, 2692474, 5384948, 10769896, 21539792]

約数ペア:

[(1, 21539792), (2, 10769896), (4, 5384948), (8, 2692474), (16, 1346237), (31, 694832), (62, 347416), (124, 173708), (248, 86854), (496, 43427)]