21399210

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33967}}^1$

素因数の和:33987

約数の個数: 48

約数和(自身を含む): 63588096

約数和(自身を除く): 42188886

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33967, 67934, 101901, 169835, 203802, 237769, 305703, 339670, 475538, 509505, 611406, 713307, 1019010, 1188845, 1426614, 1528515, 2139921, 2377690, 3057030, 3566535, 4279842, 7133070, 10699605, 21399210]

約数ペア:

[(1, 21399210), (2, 10699605), (3, 7133070), (5, 4279842), (6, 3566535), (7, 3057030), (9, 2377690), (10, 2139921), (14, 1528515), (15, 1426614), (18, 1188845), (21, 1019010), (30, 713307), (35, 611406), (42, 509505), (45, 475538), (63, 339670), (70, 305703), (90, 237769), (105, 203802), (126, 169835), (210, 101901), (315, 67934), (630, 33967)]