21237090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14447}}^1$

素因数の和:14471

約数の個数: 48

約数和(自身を含む): 59294592

約数和(自身を除く): 38057502

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14447, 28894, 43341, 72235, 86682, 101129, 144470, 202258, 216705, 303387, 433410, 505645, 606774, 707903, 1011290, 1415806, 1516935, 2123709, 3033870, 3539515, 4247418, 7079030, 10618545, 21237090]

約数ペア:

[(1, 21237090), (2, 10618545), (3, 7079030), (5, 4247418), (6, 3539515), (7, 3033870), (10, 2123709), (14, 1516935), (15, 1415806), (21, 1011290), (30, 707903), (35, 606774), (42, 505645), (49, 433410), (70, 303387), (98, 216705), (105, 202258), (147, 144470), (210, 101129), (245, 86682), (294, 72235), (490, 43341), (735, 28894), (1470, 14447)]