21385592

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157247}}^1$

素因数の和:157270

約数の個数: 16

約数和(自身を含む): 42456960

約数和(自身を除く): 21071368

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157247, 314494, 628988, 1257976, 2673199, 5346398, 10692796, 21385592]

約数ペア:

[(1, 21385592), (2, 10692796), (4, 5346398), (8, 2673199), (17, 1257976), (34, 628988), (68, 314494), (136, 157247)]