18578988

素因数分解:

$2^2\times 3^2\times {\mathrm{569}}^1\times {\mathrm{907}}^1$

素因数の和:1486

約数の個数: 36

約数和(自身を含む): 47097960

約数和(自身を除く): 28518972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569, 907, 1138, 1707, 1814, 2276, 2721, 3414, 3628, 5121, 5442, 6828, 8163, 10242, 10884, 16326, 20484, 32652, 516083, 1032166, 1548249, 2064332, 3096498, 4644747, 6192996, 9289494, 18578988]

約数ペア:

[(1, 18578988), (2, 9289494), (3, 6192996), (4, 4644747), (6, 3096498), (9, 2064332), (12, 1548249), (18, 1032166), (36, 516083), (569, 32652), (907, 20484), (1138, 16326), (1707, 10884), (1814, 10242), (2276, 8163), (2721, 6828), (3414, 5442), (3628, 5121)]