19641712

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28549}}^1$

素因数の和:28600

約数の個数: 20

約数和(自身を含む): 38942200

約数和(自身を除く): 19300488

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28549, 57098, 114196, 228392, 456784, 1227607, 2455214, 4910428, 9820856, 19641712]

約数ペア:

[(1, 19641712), (2, 9820856), (4, 4910428), (8, 2455214), (16, 1227607), (43, 456784), (86, 228392), (172, 114196), (344, 57098), (688, 28549)]