21297864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{383}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 61194240

約数和(自身を除く): 39896376

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 331, 383, 662, 766, 993, 1149, 1324, 1532, 1986, 2298, 2317, 2648, 2681, 3064, 3972, 4596, 4634, 5362, 6951, 7944, 8043, 9192, 9268, 10724, 13902, 16086, 18536, 21448, 27804, 32172, 55608, 64344, 126773, 253546, 380319, 507092, 760638, 887411, 1014184, 1521276, 1774822, 2662233, 3042552, 3549644, 5324466, 7099288, 10648932, 21297864]

約数ペア:

[(1, 21297864), (2, 10648932), (3, 7099288), (4, 5324466), (6, 3549644), (7, 3042552), (8, 2662233), (12, 1774822), (14, 1521276), (21, 1014184), (24, 887411), (28, 760638), (42, 507092), (56, 380319), (84, 253546), (168, 126773), (331, 64344), (383, 55608), (662, 32172), (766, 27804), (993, 21448), (1149, 18536), (1324, 16086), (1532, 13902), (1986, 10724), (2298, 9268), (2317, 9192), (2648, 8043), (2681, 7944), (3064, 6951), (3972, 5362), (4596, 4634)]