21075288

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2179}}^1$

素因数の和:2232

約数の個数: 64

約数和(自身を含む): 58598400

約数和(自身を除く): 37523112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 93, 104, 124, 156, 186, 248, 312, 372, 403, 744, 806, 1209, 1612, 2179, 2418, 3224, 4358, 4836, 6537, 8716, 9672, 13074, 17432, 26148, 28327, 52296, 56654, 67549, 84981, 113308, 135098, 169962, 202647, 226616, 270196, 339924, 405294, 540392, 679848, 810588, 878137, 1621176, 1756274, 2634411, 3512548, 5268822, 7025096, 10537644, 21075288]

約数ペア:

[(1, 21075288), (2, 10537644), (3, 7025096), (4, 5268822), (6, 3512548), (8, 2634411), (12, 1756274), (13, 1621176), (24, 878137), (26, 810588), (31, 679848), (39, 540392), (52, 405294), (62, 339924), (78, 270196), (93, 226616), (104, 202647), (124, 169962), (156, 135098), (186, 113308), (248, 84981), (312, 67549), (372, 56654), (403, 52296), (744, 28327), (806, 26148), (1209, 17432), (1612, 13074), (2179, 9672), (2418, 8716), (3224, 6537), (4358, 4836)]