21448856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18749}}^1$

素因数の和:18779

約数の個数: 32

約数和(自身を含む): 47250000

約数和(自身を除く): 25801144

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18749, 37498, 74996, 149992, 206239, 243737, 412478, 487474, 824956, 974948, 1649912, 1949896, 2681107, 5362214, 10724428, 21448856]

約数ペア:

[(1, 21448856), (2, 10724428), (4, 5362214), (8, 2681107), (11, 1949896), (13, 1649912), (22, 974948), (26, 824956), (44, 487474), (52, 412478), (88, 243737), (104, 206239), (143, 149992), (286, 74996), (572, 37498), (1144, 18749)]