21943072

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:521

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 23562080

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 74, 86, 148, 172, 296, 344, 431, 592, 688, 862, 1184, 1376, 1591, 1724, 3182, 3448, 6364, 6896, 12728, 13792, 15947, 18533, 25456, 31894, 37066, 50912, 63788, 74132, 127576, 148264, 255152, 296528, 510304, 593056, 685721, 1371442, 2742884, 5485768, 10971536, 21943072]

約数ペア:

[(1, 21943072), (2, 10971536), (4, 5485768), (8, 2742884), (16, 1371442), (32, 685721), (37, 593056), (43, 510304), (74, 296528), (86, 255152), (148, 148264), (172, 127576), (296, 74132), (344, 63788), (431, 50912), (592, 37066), (688, 31894), (862, 25456), (1184, 18533), (1376, 15947), (1591, 13792), (1724, 12728), (3182, 6896), (3448, 6364)]