21003702968

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{1489}}^1\times {\mathrm{26317}}^1$

素因数の和:27879

約数の個数: 32

約数和(自身を含む): 39998096400

約数和(自身を除く): 18994393432

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 1489, 2978, 5956, 11912, 26317, 52634, 99763, 105268, 199526, 210536, 399052, 798104, 1763239, 3526478, 7052956, 14105912, 39186013, 78372026, 156744052, 313488104, 2625462871, 5250925742, 10501851484, 21003702968]

約数ペア:

[(1, 21003702968), (2, 10501851484), (4, 5250925742), (8, 2625462871), (67, 313488104), (134, 156744052), (268, 78372026), (536, 39186013), (1489, 14105912), (2978, 7052956), (5956, 3526478), (11912, 1763239), (26317, 798104), (52634, 399052), (99763, 210536), (105268, 199526)]