21353836

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 45734976

約数和(自身を除く): 24381140

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 113, 119, 226, 238, 397, 452, 476, 791, 794, 1582, 1588, 1921, 2779, 3164, 3842, 5558, 6749, 7684, 11116, 13447, 13498, 26894, 26996, 44861, 47243, 53788, 89722, 94486, 179444, 188972, 314027, 628054, 762637, 1256108, 1525274, 3050548, 5338459, 10676918, 21353836]

約数ペア:

[(1, 21353836), (2, 10676918), (4, 5338459), (7, 3050548), (14, 1525274), (17, 1256108), (28, 762637), (34, 628054), (68, 314027), (113, 188972), (119, 179444), (226, 94486), (238, 89722), (397, 53788), (452, 47243), (476, 44861), (791, 26996), (794, 26894), (1582, 13498), (1588, 13447), (1921, 11116), (2779, 7684), (3164, 6749), (3842, 5558)]