21000252664

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{853}}^1\times {\mathrm{161969}}^1$

素因数の和:162847

約数の個数: 32

約数和(自身を含む): 41496714000

約数和(自身を除く): 20496461336

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 853, 1706, 3412, 6824, 16207, 32414, 64828, 129656, 161969, 323938, 647876, 1295752, 3077411, 6154822, 12309644, 24619288, 138159557, 276319114, 552638228, 1105276456, 2625031583, 5250063166, 10500126332, 21000252664]

約数ペア:

[(1, 21000252664), (2, 10500126332), (4, 5250063166), (8, 2625031583), (19, 1105276456), (38, 552638228), (76, 276319114), (152, 138159557), (853, 24619288), (1706, 12309644), (3412, 6154822), (6824, 3077411), (16207, 1295752), (32414, 647876), (64828, 323938), (129656, 161969)]