21976864

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7547}}^1$

素因数の和:7577

約数の個数: 48

約数和(自身を含む): 53258688

約数和(自身を除く): 31281824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7547, 15094, 30188, 52829, 60376, 98111, 105658, 120752, 196222, 211316, 241504, 392444, 422632, 686777, 784888, 845264, 1373554, 1569776, 1690528, 2747108, 3139552, 5494216, 10988432, 21976864]

約数ペア:

[(1, 21976864), (2, 10988432), (4, 5494216), (7, 3139552), (8, 2747108), (13, 1690528), (14, 1569776), (16, 1373554), (26, 845264), (28, 784888), (32, 686777), (52, 422632), (56, 392444), (91, 241504), (104, 211316), (112, 196222), (182, 120752), (208, 105658), (224, 98111), (364, 60376), (416, 52829), (728, 30188), (1456, 15094), (2912, 7547)]