21661502

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 36000288

約数和(自身を除く): 14338786

約数列:

[1, 2, 17, 34, 37, 67, 74, 134, 257, 514, 629, 1139, 1258, 2278, 2479, 4369, 4958, 8738, 9509, 17219, 19018, 34438, 42143, 84286, 161653, 292723, 323306, 585446, 637103, 1274206, 10830751, 21661502]

約数ペア:

[(1, 21661502), (2, 10830751), (17, 1274206), (34, 637103), (37, 585446), (67, 323306), (74, 292723), (134, 161653), (257, 84286), (514, 42143), (629, 34438), (1139, 19018), (1258, 17219), (2278, 9509), (2479, 8738), (4369, 4958)]