21200512

素因数分解:

$2^7\times {\mathrm{89}}^1\times {\mathrm{1861}}^1$

素因数の和:1964

約数の個数: 32

約数和(自身を含む): 42732900

約数和(自身を除く): 21532388

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 356, 712, 1424, 1861, 2848, 3722, 5696, 7444, 11392, 14888, 29776, 59552, 119104, 165629, 238208, 331258, 662516, 1325032, 2650064, 5300128, 10600256, 21200512]

約数ペア:

[(1, 21200512), (2, 10600256), (4, 5300128), (8, 2650064), (16, 1325032), (32, 662516), (64, 331258), (89, 238208), (128, 165629), (178, 119104), (356, 59552), (712, 29776), (1424, 14888), (1861, 11392), (2848, 7444), (3722, 5696)]