21126880

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5741}}^1$

素因数の和:5779

約数の個数: 48

約数和(自身を含む): 52091424

約数和(自身を除く): 30964544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5741, 11482, 22964, 28705, 45928, 57410, 91856, 114820, 132043, 183712, 229640, 264086, 459280, 528172, 660215, 918560, 1056344, 1320430, 2112688, 2640860, 4225376, 5281720, 10563440, 21126880]

約数ペア:

[(1, 21126880), (2, 10563440), (4, 5281720), (5, 4225376), (8, 2640860), (10, 2112688), (16, 1320430), (20, 1056344), (23, 918560), (32, 660215), (40, 528172), (46, 459280), (80, 264086), (92, 229640), (115, 183712), (160, 132043), (184, 114820), (230, 91856), (368, 57410), (460, 45928), (736, 28705), (920, 22964), (1840, 11482), (3680, 5741)]