19647978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7669}}^1$

素因数の和:7742

約数の個数: 32

約数和(自身を含む): 45651840

約数和(自身を除く): 26003862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 7669, 15338, 23007, 46014, 53683, 107366, 161049, 322098, 467809, 935618, 1403427, 2806854, 3274663, 6549326, 9823989, 19647978]

約数ペア:

[(1, 19647978), (2, 9823989), (3, 6549326), (6, 3274663), (7, 2806854), (14, 1403427), (21, 935618), (42, 467809), (61, 322098), (122, 161049), (183, 107366), (366, 53683), (427, 46014), (854, 23007), (1281, 15338), (2562, 7669)]