21752312

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 19978888

約数列:

[1, 2, 4, 8, 89, 137, 178, 223, 274, 356, 446, 548, 712, 892, 1096, 1784, 12193, 19847, 24386, 30551, 39694, 48772, 61102, 79388, 97544, 122204, 158776, 244408, 2719039, 5438078, 10876156, 21752312]

約数ペア:

[(1, 21752312), (2, 10876156), (4, 5438078), (8, 2719039), (89, 244408), (137, 158776), (178, 122204), (223, 97544), (274, 79388), (356, 61102), (446, 48772), (548, 39694), (712, 30551), (892, 24386), (1096, 19847), (1784, 12193)]