20155317

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 14318283

約数列:

[1, 3, 7, 13, 21, 39, 49, 53, 91, 147, 159, 199, 273, 371, 597, 637, 689, 1113, 1393, 1911, 2067, 2587, 2597, 4179, 4823, 7761, 7791, 9751, 10547, 14469, 18109, 29253, 31641, 33761, 54327, 73829, 101283, 126763, 137111, 221487, 380289, 411333, 516803, 959777, 1550409, 2879331, 6718439, 20155317]

約数ペア:

[(1, 20155317), (3, 6718439), (7, 2879331), (13, 1550409), (21, 959777), (39, 516803), (49, 411333), (53, 380289), (91, 221487), (147, 137111), (159, 126763), (199, 101283), (273, 73829), (371, 54327), (597, 33761), (637, 31641), (689, 29253), (1113, 18109), (1393, 14469), (1911, 10547), (2067, 9751), (2587, 7791), (2597, 7761), (4179, 4823)]