211211308

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2075

約数の個数: 72

約数和(自身を含む): 479532032

約数和(自身を除く): 268320724

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 121, 124, 154, 217, 242, 308, 341, 434, 484, 682, 847, 868, 1364, 1694, 2011, 2387, 3388, 3751, 4022, 4774, 7502, 8044, 9548, 14077, 15004, 22121, 26257, 28154, 44242, 52514, 56308, 62341, 88484, 105028, 124682, 154847, 243331, 249364, 309694, 436387, 486662, 619388, 685751, 872774, 973324, 1371502, 1703317, 1745548, 2743004, 3406634, 4800257, 6813268, 7543261, 9600514, 15086522, 19201028, 30173044, 52802827, 105605654, 211211308]

約数ペア:

[(1, 211211308), (2, 105605654), (4, 52802827), (7, 30173044), (11, 19201028), (14, 15086522), (22, 9600514), (28, 7543261), (31, 6813268), (44, 4800257), (62, 3406634), (77, 2743004), (121, 1745548), (124, 1703317), (154, 1371502), (217, 973324), (242, 872774), (308, 685751), (341, 619388), (434, 486662), (484, 436387), (682, 309694), (847, 249364), (868, 243331), (1364, 154847), (1694, 124682), (2011, 105028), (2387, 88484), (3388, 62341), (3751, 56308), (4022, 52514), (4774, 44242), (7502, 28154), (8044, 26257), (9548, 22121), (14077, 15004)]