21995456

素因数分解:

$2^6\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1693}}^1$

素因数の和:1741

約数の個数: 56

約数和(自身を含む): 51633120

約数和(自身を除く): 29637664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 112, 116, 203, 224, 232, 406, 448, 464, 812, 928, 1624, 1693, 1856, 3248, 3386, 6496, 6772, 11851, 12992, 13544, 23702, 27088, 47404, 49097, 54176, 94808, 98194, 108352, 189616, 196388, 343679, 379232, 392776, 687358, 758464, 785552, 1374716, 1571104, 2749432, 3142208, 5498864, 10997728, 21995456]

約数ペア:

[(1, 21995456), (2, 10997728), (4, 5498864), (7, 3142208), (8, 2749432), (14, 1571104), (16, 1374716), (28, 785552), (29, 758464), (32, 687358), (56, 392776), (58, 379232), (64, 343679), (112, 196388), (116, 189616), (203, 108352), (224, 98194), (232, 94808), (406, 54176), (448, 49097), (464, 47404), (812, 27088), (928, 23702), (1624, 13544), (1693, 12992), (1856, 11851), (3248, 6772), (3386, 6496)]