128221317

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 220900992

約数和(自身を除く): 92679675

約数列:

[1, 3, 7, 9, 21, 37, 63, 67, 111, 201, 259, 333, 469, 603, 777, 821, 1407, 2331, 2463, 2479, 4221, 5747, 7389, 7437, 17241, 17353, 22311, 30377, 51723, 52059, 55007, 91131, 156177, 165021, 212639, 273393, 385049, 495063, 637917, 1155147, 1913751, 2035259, 3465441, 6105777, 14246813, 18317331, 42740439, 128221317]

約数ペア:

[(1, 128221317), (3, 42740439), (7, 18317331), (9, 14246813), (21, 6105777), (37, 3465441), (63, 2035259), (67, 1913751), (111, 1155147), (201, 637917), (259, 495063), (333, 385049), (469, 273393), (603, 212639), (777, 165021), (821, 156177), (1407, 91131), (2331, 55007), (2463, 52059), (2479, 51723), (4221, 30377), (5747, 22311), (7389, 17353), (7437, 17241)]