21489291248

素因数分解:

$2^4\times {\mathrm{9323}}^1\times {\mathrm{144061}}^1$

素因数の和:153392

約数の個数: 20

約数和(自身を含む): 41640256728

約数和(自身を除く): 20150965480

約数列:

[1, 2, 4, 8, 16, 9323, 18646, 37292, 74584, 144061, 149168, 288122, 576244, 1152488, 2304976, 1343080703, 2686161406, 5372322812, 10744645624, 21489291248]

約数ペア:

[(1, 21489291248), (2, 10744645624), (4, 5372322812), (8, 2686161406), (16, 1343080703), (9323, 2304976), (18646, 1152488), (37292, 576244), (74584, 288122), (144061, 149168)]