21625264

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 43300800

約数和(自身を除く): 21675536

約数列:

[1, 2, 4, 8, 16, 47, 94, 149, 188, 193, 298, 376, 386, 596, 752, 772, 1192, 1544, 2384, 3088, 7003, 9071, 14006, 18142, 28012, 28757, 36284, 56024, 57514, 72568, 112048, 115028, 145136, 230056, 460112, 1351579, 2703158, 5406316, 10812632, 21625264]

約数ペア:

[(1, 21625264), (2, 10812632), (4, 5406316), (8, 2703158), (16, 1351579), (47, 460112), (94, 230056), (149, 145136), (188, 115028), (193, 112048), (298, 72568), (376, 57514), (386, 56024), (596, 36284), (752, 28757), (772, 28012), (1192, 18142), (1544, 14006), (2384, 9071), (3088, 7003)]