21459636

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1153}}^1$

素因数の和:1221

約数の個数: 72

約数和(自身を含む): 60488064

約数和(自身を除く): 39028428

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 47, 66, 94, 99, 132, 141, 188, 198, 282, 396, 423, 517, 564, 846, 1034, 1153, 1551, 1692, 2068, 2306, 3102, 3459, 4612, 4653, 6204, 6918, 9306, 10377, 12683, 13836, 18612, 20754, 25366, 38049, 41508, 50732, 54191, 76098, 108382, 114147, 152196, 162573, 216764, 228294, 325146, 456588, 487719, 596101, 650292, 975438, 1192202, 1788303, 1950876, 2384404, 3576606, 5364909, 7153212, 10729818, 21459636]

約数ペア:

[(1, 21459636), (2, 10729818), (3, 7153212), (4, 5364909), (6, 3576606), (9, 2384404), (11, 1950876), (12, 1788303), (18, 1192202), (22, 975438), (33, 650292), (36, 596101), (44, 487719), (47, 456588), (66, 325146), (94, 228294), (99, 216764), (132, 162573), (141, 152196), (188, 114147), (198, 108382), (282, 76098), (396, 54191), (423, 50732), (517, 41508), (564, 38049), (846, 25366), (1034, 20754), (1153, 18612), (1551, 13836), (1692, 12683), (2068, 10377), (2306, 9306), (3102, 6918), (3459, 6204), (4612, 4653)]