21917984

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:969

約数の個数: 48

約数和(自身を含む): 47791296

約数和(自身を除く): 25873312

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 568, 781, 877, 1136, 1562, 1754, 2272, 3124, 3508, 6248, 7016, 9647, 12496, 14032, 19294, 24992, 28064, 38588, 62267, 77176, 124534, 154352, 249068, 308704, 498136, 684937, 996272, 1369874, 1992544, 2739748, 5479496, 10958992, 21917984]

約数ペア:

[(1, 21917984), (2, 10958992), (4, 5479496), (8, 2739748), (11, 1992544), (16, 1369874), (22, 996272), (32, 684937), (44, 498136), (71, 308704), (88, 249068), (142, 154352), (176, 124534), (284, 77176), (352, 62267), (568, 38588), (781, 28064), (877, 24992), (1136, 19294), (1562, 14032), (1754, 12496), (2272, 9647), (3124, 7016), (3508, 6248)]