21677432

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12487}}^1$

素因数の和:12531

約数の個数: 32

約数和(自身を含む): 47953920

約数和(自身を除く): 26276488

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12487, 24974, 49948, 87409, 99896, 174818, 349636, 387097, 699272, 774194, 1548388, 2709679, 3096776, 5419358, 10838716, 21677432]

約数ペア:

[(1, 21677432), (2, 10838716), (4, 5419358), (7, 3096776), (8, 2709679), (14, 1548388), (28, 774194), (31, 699272), (56, 387097), (62, 349636), (124, 174818), (217, 99896), (248, 87409), (434, 49948), (868, 24974), (1736, 12487)]