20017558743

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{455431}}^1$

素因数の和:455484

約数の個数: 48

約数和(自身を含む): 34889734656

約数和(自身を除く): 14872175913

約数列:

[1, 3, 7, 13, 21, 23, 39, 49, 69, 91, 147, 161, 273, 299, 483, 637, 897, 1127, 1911, 2093, 3381, 6279, 14651, 43953, 455431, 1366293, 3188017, 5920603, 9564051, 10474913, 17761809, 22316119, 31424739, 41444221, 66948357, 73324391, 124332663, 136173869, 219973173, 290109547, 408521607, 513270737, 870328641, 953217083, 1539812211, 2859651249, 6672519581, 20017558743]

約数ペア:

[(1, 20017558743), (3, 6672519581), (7, 2859651249), (13, 1539812211), (21, 953217083), (23, 870328641), (39, 513270737), (49, 408521607), (69, 290109547), (91, 219973173), (147, 136173869), (161, 124332663), (273, 73324391), (299, 66948357), (483, 41444221), (637, 31424739), (897, 22316119), (1127, 17761809), (1911, 10474913), (2093, 9564051), (3381, 5920603), (6279, 3188017), (14651, 1366293), (43953, 455431)]