21964844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 21580756

約数列:

[1, 2, 4, 11, 22, 44, 71, 79, 89, 142, 158, 178, 284, 316, 356, 781, 869, 979, 1562, 1738, 1958, 3124, 3476, 3916, 5609, 6319, 7031, 11218, 12638, 14062, 22436, 25276, 28124, 61699, 69509, 77341, 123398, 139018, 154682, 246796, 278036, 309364, 499201, 998402, 1996804, 5491211, 10982422, 21964844]

約数ペア:

[(1, 21964844), (2, 10982422), (4, 5491211), (11, 1996804), (22, 998402), (44, 499201), (71, 309364), (79, 278036), (89, 246796), (142, 154682), (158, 139018), (178, 123398), (284, 77341), (316, 69509), (356, 61699), (781, 28124), (869, 25276), (979, 22436), (1562, 14062), (1738, 12638), (1958, 11218), (3124, 7031), (3476, 6319), (3916, 5609)]