220153479

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{2593}}^1$

素因数の和:2927

約数の個数: 32

約数和(自身を含む): 362578944

約数和(自身を除く): 142425465

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 311, 933, 2177, 2593, 4043, 6531, 7779, 12129, 18151, 28301, 33709, 54453, 84903, 101127, 235963, 707889, 806423, 2419269, 5644961, 10483499, 16934883, 31450497, 73384493, 220153479]

約数ペア:

[(1, 220153479), (3, 73384493), (7, 31450497), (13, 16934883), (21, 10483499), (39, 5644961), (91, 2419269), (273, 806423), (311, 707889), (933, 235963), (2177, 101127), (2593, 84903), (4043, 54453), (6531, 33709), (7779, 28301), (12129, 18151)]