21888752

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:657

約数の個数: 40

約数和(自身を含む): 44236752

約数和(自身を除く): 22348000

約数列:

[1, 2, 4, 8, 16, 41, 61, 82, 122, 164, 244, 328, 488, 547, 656, 976, 1094, 2188, 2501, 4376, 5002, 8752, 10004, 20008, 22427, 33367, 40016, 44854, 66734, 89708, 133468, 179416, 266936, 358832, 533872, 1368047, 2736094, 5472188, 10944376, 21888752]

約数ペア:

[(1, 21888752), (2, 10944376), (4, 5472188), (8, 2736094), (16, 1368047), (41, 533872), (61, 358832), (82, 266936), (122, 179416), (164, 133468), (244, 89708), (328, 66734), (488, 44854), (547, 40016), (656, 33367), (976, 22427), (1094, 20008), (2188, 10004), (2501, 8752), (4376, 5002)]