21468690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{907}}^1$

素因数の和:1183

約数の個数: 48

約数和(自身を含む): 56092608

約数和(自身を除く): 34623918

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 263, 526, 789, 907, 1315, 1578, 1814, 2367, 2630, 2721, 3945, 4535, 4734, 5442, 7890, 8163, 9070, 11835, 13605, 16326, 23670, 27210, 40815, 81630, 238541, 477082, 715623, 1192705, 1431246, 2146869, 2385410, 3578115, 4293738, 7156230, 10734345, 21468690]

約数ペア:

[(1, 21468690), (2, 10734345), (3, 7156230), (5, 4293738), (6, 3578115), (9, 2385410), (10, 2146869), (15, 1431246), (18, 1192705), (30, 715623), (45, 477082), (90, 238541), (263, 81630), (526, 40815), (789, 27210), (907, 23670), (1315, 16326), (1578, 13605), (1814, 11835), (2367, 9070), (2630, 8163), (2721, 7890), (3945, 5442), (4535, 4734)]