21228540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15383}}^1$

素因数の和:15418

約数の個数: 48

約数和(自身を含む): 62028288

約数和(自身を除く): 40799748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15383, 30766, 46149, 61532, 76915, 92298, 153830, 184596, 230745, 307660, 353809, 461490, 707618, 922980, 1061427, 1415236, 1769045, 2122854, 3538090, 4245708, 5307135, 7076180, 10614270, 21228540]

約数ペア:

[(1, 21228540), (2, 10614270), (3, 7076180), (4, 5307135), (5, 4245708), (6, 3538090), (10, 2122854), (12, 1769045), (15, 1415236), (20, 1061427), (23, 922980), (30, 707618), (46, 461490), (60, 353809), (69, 307660), (92, 230745), (115, 184596), (138, 153830), (230, 92298), (276, 76915), (345, 61532), (460, 46149), (690, 30766), (1380, 15383)]