21185312

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 44384760

約数和(自身を除く): 23199448

約数列:

[1, 2, 4, 8, 16, 29, 32, 37, 58, 74, 116, 148, 232, 296, 464, 592, 617, 928, 1073, 1184, 1234, 2146, 2468, 4292, 4936, 8584, 9872, 17168, 17893, 19744, 22829, 34336, 35786, 45658, 71572, 91316, 143144, 182632, 286288, 365264, 572576, 662041, 730528, 1324082, 2648164, 5296328, 10592656, 21185312]

約数ペア:

[(1, 21185312), (2, 10592656), (4, 5296328), (8, 2648164), (16, 1324082), (29, 730528), (32, 662041), (37, 572576), (58, 365264), (74, 286288), (116, 182632), (148, 143144), (232, 91316), (296, 71572), (464, 45658), (592, 35786), (617, 34336), (928, 22829), (1073, 19744), (1184, 17893), (1234, 17168), (2146, 9872), (2468, 8584), (4292, 4936)]