21474256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70639}}^1$

素因数の和:70666

約数の個数: 20

約数和(自身を含む): 43796800

約数和(自身を除く): 22322544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70639, 141278, 282556, 565112, 1130224, 1342141, 2684282, 5368564, 10737128, 21474256]

約数ペア:

[(1, 21474256), (2, 10737128), (4, 5368564), (8, 2684282), (16, 1342141), (19, 1130224), (38, 565112), (76, 282556), (152, 141278), (304, 70639)]