21286366948

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{897553}}^1$

素因数の和:897593

約数の個数: 54

約数和(自身を含む): 47630498118

約数和(自身を除く): 26344131170

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 847, 1078, 1694, 2156, 3388, 5929, 11858, 23716, 897553, 1795106, 3590212, 6282871, 9873083, 12565742, 19746166, 25131484, 39492332, 43980097, 69111581, 87960194, 108603913, 138223162, 175920388, 217207826, 276446324, 434415652, 483781067, 760227391, 967562134, 1520454782, 1935124268, 3040909564, 5321591737, 10643183474, 21286366948]

約数ペア:

[(1, 21286366948), (2, 10643183474), (4, 5321591737), (7, 3040909564), (11, 1935124268), (14, 1520454782), (22, 967562134), (28, 760227391), (44, 483781067), (49, 434415652), (77, 276446324), (98, 217207826), (121, 175920388), (154, 138223162), (196, 108603913), (242, 87960194), (308, 69111581), (484, 43980097), (539, 39492332), (847, 25131484), (1078, 19746166), (1694, 12565742), (2156, 9873083), (3388, 6282871), (5929, 3590212), (11858, 1795106), (23716, 897553)]