20403856263

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{127291}}^1$

素因数の和:127767

約数の個数: 32

約数和(自身を含む): 32994086400

約数和(自身を除く): 12590230137

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 449, 1347, 3143, 7633, 9429, 22899, 53431, 127291, 160293, 381873, 891037, 2163947, 2673111, 6491841, 15147629, 45442887, 57153659, 171460977, 400075613, 971612203, 1200226839, 2914836609, 6801285421, 20403856263]

約数ペア:

[(1, 20403856263), (3, 6801285421), (7, 2914836609), (17, 1200226839), (21, 971612203), (51, 400075613), (119, 171460977), (357, 57153659), (449, 45442887), (1347, 15147629), (3143, 6491841), (7633, 2673111), (9429, 2163947), (22899, 891037), (53431, 381873), (127291, 160293)]