18846438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 43872192

約数和(自身を除く): 25025754

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 61, 78, 102, 122, 183, 221, 233, 366, 442, 466, 663, 699, 793, 1037, 1326, 1398, 1586, 2074, 2379, 3029, 3111, 3961, 4758, 6058, 6222, 7922, 9087, 11883, 13481, 14213, 18174, 23766, 26962, 28426, 40443, 42639, 51493, 80886, 85278, 102986, 154479, 184769, 241621, 308958, 369538, 483242, 554307, 724863, 1108614, 1449726, 3141073, 6282146, 9423219, 18846438]

約数ペア:

[(1, 18846438), (2, 9423219), (3, 6282146), (6, 3141073), (13, 1449726), (17, 1108614), (26, 724863), (34, 554307), (39, 483242), (51, 369538), (61, 308958), (78, 241621), (102, 184769), (122, 154479), (183, 102986), (221, 85278), (233, 80886), (366, 51493), (442, 42639), (466, 40443), (663, 28426), (699, 26962), (793, 23766), (1037, 18174), (1326, 14213), (1398, 13481), (1586, 11883), (2074, 9087), (2379, 7922), (3029, 6222), (3111, 6058), (3961, 4758)]