21141848

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 49412160

約数和(自身を除く): 28270312

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 113, 182, 226, 257, 364, 452, 514, 728, 791, 904, 1028, 1469, 1582, 1799, 2056, 2938, 3164, 3341, 3598, 5876, 6328, 6682, 7196, 10283, 11752, 13364, 14392, 20566, 23387, 26728, 29041, 41132, 46774, 58082, 82264, 93548, 116164, 187096, 203287, 232328, 377533, 406574, 755066, 813148, 1510132, 1626296, 2642731, 3020264, 5285462, 10570924, 21141848]

約数ペア:

[(1, 21141848), (2, 10570924), (4, 5285462), (7, 3020264), (8, 2642731), (13, 1626296), (14, 1510132), (26, 813148), (28, 755066), (52, 406574), (56, 377533), (91, 232328), (104, 203287), (113, 187096), (182, 116164), (226, 93548), (257, 82264), (364, 58082), (452, 46774), (514, 41132), (728, 29041), (791, 26728), (904, 23387), (1028, 20566), (1469, 14392), (1582, 13364), (1799, 11752), (2056, 10283), (2938, 7196), (3164, 6682), (3341, 6328), (3598, 5876)]