21638576939

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{6763}}^1$

素因数の和:6984

約数の個数: 48

約数和(自身を含む): 27981531648

約数和(自身を除く): 6342954709

約数列:

[1, 7, 17, 23, 49, 119, 161, 167, 391, 833, 1127, 1169, 2737, 2839, 3841, 6763, 8183, 19159, 19873, 26887, 47341, 65297, 114971, 139111, 155549, 188209, 331387, 457079, 804797, 1088843, 1129421, 2644333, 3199553, 5633579, 7621901, 7905947, 18510331, 19200157, 25976683, 55341629, 129572317, 134401099, 181836781, 441603611, 940807693, 1272857467, 3091225277, 21638576939]

約数ペア:

[(1, 21638576939), (7, 3091225277), (17, 1272857467), (23, 940807693), (49, 441603611), (119, 181836781), (161, 134401099), (167, 129572317), (391, 55341629), (833, 25976683), (1127, 19200157), (1169, 18510331), (2737, 7905947), (2839, 7621901), (3841, 5633579), (6763, 3199553), (8183, 2644333), (19159, 1129421), (19873, 1088843), (26887, 804797), (47341, 457079), (65297, 331387), (114971, 188209), (139111, 155549)]