21373976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205519}}^1$

素因数の和:205538

約数の個数: 16

約数和(自身を含む): 43159200

約数和(自身を除く): 21785224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205519, 411038, 822076, 1644152, 2671747, 5343494, 10686988, 21373976]

約数ペア:

[(1, 21373976), (2, 10686988), (4, 5343494), (8, 2671747), (13, 1644152), (26, 822076), (52, 411038), (104, 205519)]