21141252

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 58810752

約数和(自身を除く): 37669500

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 197, 198, 271, 394, 396, 542, 591, 788, 813, 1084, 1182, 1626, 1773, 2167, 2364, 2439, 2981, 3252, 3546, 4334, 4878, 5962, 6501, 7092, 8668, 8943, 9756, 11924, 13002, 17886, 19503, 26004, 26829, 35772, 39006, 53387, 53658, 78012, 106774, 107316, 160161, 213548, 320322, 480483, 587257, 640644, 960966, 1174514, 1761771, 1921932, 2349028, 3523542, 5285313, 7047084, 10570626, 21141252]

約数ペア:

[(1, 21141252), (2, 10570626), (3, 7047084), (4, 5285313), (6, 3523542), (9, 2349028), (11, 1921932), (12, 1761771), (18, 1174514), (22, 960966), (33, 640644), (36, 587257), (44, 480483), (66, 320322), (99, 213548), (132, 160161), (197, 107316), (198, 106774), (271, 78012), (394, 53658), (396, 53387), (542, 39006), (591, 35772), (788, 26829), (813, 26004), (1084, 19503), (1182, 17886), (1626, 13002), (1773, 11924), (2167, 9756), (2364, 8943), (2439, 8668), (2981, 7092), (3252, 6501), (3546, 5962), (4334, 4878)]