21405568

素因数分解:

$2^7\times {\mathrm{89}}^1\times {\mathrm{1879}}^1$

素因数の和:1982

約数の個数: 32

約数和(自身を含む): 43146000

約数和(自身を除く): 21740432

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 356, 712, 1424, 1879, 2848, 3758, 5696, 7516, 11392, 15032, 30064, 60128, 120256, 167231, 240512, 334462, 668924, 1337848, 2675696, 5351392, 10702784, 21405568]

約数ペア:

[(1, 21405568), (2, 10702784), (4, 5351392), (8, 2675696), (16, 1337848), (32, 668924), (64, 334462), (89, 240512), (128, 167231), (178, 120256), (356, 60128), (712, 30064), (1424, 15032), (1879, 11392), (2848, 7516), (3758, 5696)]