21411804976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70433569}}^1$

素因数の和:70433596

約数の個数: 20

約数和(自身を含む): 43668813400

約数和(自身を除く): 22257008424

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70433569, 140867138, 281734276, 563468552, 1126937104, 1338237811, 2676475622, 5352951244, 10705902488, 21411804976]

約数ペア:

[(1, 21411804976), (2, 10705902488), (4, 5352951244), (8, 2676475622), (16, 1338237811), (19, 1126937104), (38, 563468552), (76, 281734276), (152, 140867138), (304, 70433569)]