21082628

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1723}}^1$

素因数の和:1776

約数の個数: 48

約数和(自身を含む): 46341120

約数和(自身を除く): 25258492

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 76, 92, 133, 161, 266, 322, 437, 532, 644, 874, 1723, 1748, 3059, 3446, 6118, 6892, 12061, 12236, 24122, 32737, 39629, 48244, 65474, 79258, 130948, 158516, 229159, 277403, 458318, 554806, 752951, 916636, 1109612, 1505902, 3011804, 5270657, 10541314, 21082628]

約数ペア:

[(1, 21082628), (2, 10541314), (4, 5270657), (7, 3011804), (14, 1505902), (19, 1109612), (23, 916636), (28, 752951), (38, 554806), (46, 458318), (76, 277403), (92, 229159), (133, 158516), (161, 130948), (266, 79258), (322, 65474), (437, 48244), (532, 39629), (644, 32737), (874, 24122), (1723, 12236), (1748, 12061), (3059, 6892), (3446, 6118)]