21475888

素因数分解:

$2^4\times 7^1\times {\mathrm{191749}}^1$

素因数の和:191764

約数の個数: 20

約数和(自身を含む): 47554000

約数和(自身を除く): 26078112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191749, 383498, 766996, 1342243, 1533992, 2684486, 3067984, 5368972, 10737944, 21475888]

約数ペア:

[(1, 21475888), (2, 10737944), (4, 5368972), (7, 3067984), (8, 2684486), (14, 1533992), (16, 1342243), (28, 766996), (56, 383498), (112, 191749)]