21960884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 44721600

約数和(自身を除く): 22760716

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 109, 209, 218, 241, 418, 436, 482, 836, 964, 1199, 2071, 2398, 2651, 4142, 4579, 4796, 5302, 8284, 9158, 10604, 18316, 22781, 26269, 45562, 50369, 52538, 91124, 100738, 105076, 201476, 288959, 499111, 577918, 998222, 1155836, 1996444, 5490221, 10980442, 21960884]

約数ペア:

[(1, 21960884), (2, 10980442), (4, 5490221), (11, 1996444), (19, 1155836), (22, 998222), (38, 577918), (44, 499111), (76, 288959), (109, 201476), (209, 105076), (218, 100738), (241, 91124), (418, 52538), (436, 50369), (482, 45562), (836, 26269), (964, 22781), (1199, 18316), (2071, 10604), (2398, 9158), (2651, 8284), (4142, 5302), (4579, 4796)]