21792112

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 43849872

約数和(自身を除く): 22057760

約数列:

[1, 2, 4, 8, 16, 37, 74, 131, 148, 262, 281, 296, 524, 562, 592, 1048, 1124, 2096, 2248, 4496, 4847, 9694, 10397, 19388, 20794, 36811, 38776, 41588, 73622, 77552, 83176, 147244, 166352, 294488, 588976, 1362007, 2724014, 5448028, 10896056, 21792112]

約数ペア:

[(1, 21792112), (2, 10896056), (4, 5448028), (8, 2724014), (16, 1362007), (37, 588976), (74, 294488), (131, 166352), (148, 147244), (262, 83176), (281, 77552), (296, 73622), (524, 41588), (562, 38776), (592, 36811), (1048, 20794), (1124, 19388), (2096, 10397), (2248, 9694), (4496, 4847)]