21780453597

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1831}}^1\times {\mathrm{4259}}^1$

素因数の和:6126

約数の個数: 48

約数和(自身を含む): 35587699200

約数和(自身を除く): 13807245603

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 1831, 2793, 4259, 5493, 12777, 12817, 29813, 34789, 38451, 80921, 89439, 89719, 104367, 208691, 242763, 243523, 269157, 566447, 626073, 730569, 1699341, 1704661, 3965129, 5113983, 7798229, 11895387, 23394687, 54587603, 148166351, 163762809, 382113221, 444499053, 1037164457, 1146339663, 3111493371, 7260151199, 21780453597]

約数ペア:

[(1, 21780453597), (3, 7260151199), (7, 3111493371), (19, 1146339663), (21, 1037164457), (49, 444499053), (57, 382113221), (133, 163762809), (147, 148166351), (399, 54587603), (931, 23394687), (1831, 11895387), (2793, 7798229), (4259, 5113983), (5493, 3965129), (12777, 1704661), (12817, 1699341), (29813, 730569), (34789, 626073), (38451, 566447), (80921, 269157), (89439, 243523), (89719, 242763), (104367, 208691)]