21151284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2081}}^1$

素因数の和:2117

約数の個数: 72

約数和(自身を含む): 62026944

約数和(自身を除く): 40875660

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 121, 132, 154, 231, 242, 308, 363, 462, 484, 726, 847, 924, 1452, 1694, 2081, 2541, 3388, 4162, 5082, 6243, 8324, 10164, 12486, 14567, 22891, 24972, 29134, 43701, 45782, 58268, 68673, 87402, 91564, 137346, 160237, 174804, 251801, 274692, 320474, 480711, 503602, 640948, 755403, 961422, 1007204, 1510806, 1762607, 1922844, 3021612, 3525214, 5287821, 7050428, 10575642, 21151284]

約数ペア:

[(1, 21151284), (2, 10575642), (3, 7050428), (4, 5287821), (6, 3525214), (7, 3021612), (11, 1922844), (12, 1762607), (14, 1510806), (21, 1007204), (22, 961422), (28, 755403), (33, 640948), (42, 503602), (44, 480711), (66, 320474), (77, 274692), (84, 251801), (121, 174804), (132, 160237), (154, 137346), (231, 91564), (242, 87402), (308, 68673), (363, 58268), (462, 45782), (484, 43701), (726, 29134), (847, 24972), (924, 22891), (1452, 14567), (1694, 12486), (2081, 10164), (2541, 8324), (3388, 6243), (4162, 5082)]