21691354

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{653}}^1\times {\mathrm{977}}^1$

素因数の和:1649

約数の個数: 16

約数和(自身を含む): 34539048

約数和(自身を除く): 12847694

約数列:

[1, 2, 17, 34, 653, 977, 1306, 1954, 11101, 16609, 22202, 33218, 637981, 1275962, 10845677, 21691354]

約数ペア:

[(1, 21691354), (2, 10845677), (17, 1275962), (34, 637981), (653, 33218), (977, 22202), (1306, 16609), (1954, 11101)]