21405252

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5231}}^1$

素因数の和:5280

約数の個数: 48

約数和(自身を含む): 56254464

約数和(自身を除く): 34849212

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 93, 124, 132, 186, 341, 372, 682, 1023, 1364, 2046, 4092, 5231, 10462, 15693, 20924, 31386, 57541, 62772, 115082, 162161, 172623, 230164, 324322, 345246, 486483, 648644, 690492, 972966, 1783771, 1945932, 3567542, 5351313, 7135084, 10702626, 21405252]

約数ペア:

[(1, 21405252), (2, 10702626), (3, 7135084), (4, 5351313), (6, 3567542), (11, 1945932), (12, 1783771), (22, 972966), (31, 690492), (33, 648644), (44, 486483), (62, 345246), (66, 324322), (93, 230164), (124, 172623), (132, 162161), (186, 115082), (341, 62772), (372, 57541), (682, 31386), (1023, 20924), (1364, 15693), (2046, 10462), (4092, 5231)]