21217984

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{17449}}^1$

素因数の和:17480

約数の個数: 28

約数和(自身を含む): 44323000

約数和(自身を除く): 23105016

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 17449, 34898, 69796, 139592, 279184, 331531, 558368, 663062, 1116736, 1326124, 2652248, 5304496, 10608992, 21217984]

約数ペア:

[(1, 21217984), (2, 10608992), (4, 5304496), (8, 2652248), (16, 1326124), (19, 1116736), (32, 663062), (38, 558368), (64, 331531), (76, 279184), (152, 139592), (304, 69796), (608, 34898), (1216, 17449)]