21386714

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 35582976

約数和(自身を除く): 14196262

約数列:

[1, 2, 17, 31, 34, 62, 103, 197, 206, 394, 527, 1054, 1751, 3193, 3349, 3502, 6107, 6386, 6698, 12214, 20291, 40582, 54281, 103819, 108562, 207638, 344947, 629021, 689894, 1258042, 10693357, 21386714]

約数ペア:

[(1, 21386714), (2, 10693357), (17, 1258042), (31, 689894), (34, 629021), (62, 344947), (103, 207638), (197, 108562), (206, 103819), (394, 54281), (527, 40582), (1054, 20291), (1751, 12214), (3193, 6698), (3349, 6386), (3502, 6107)]