21891816

素因数分解:

$2^3\times 3^3\times {\mathrm{43}}^1\times {\mathrm{2357}}^1$

素因数の和:2415

約数の個数: 64

約数和(自身を含む): 62251200

約数和(自身を除く): 40359384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 86, 108, 129, 172, 216, 258, 344, 387, 516, 774, 1032, 1161, 1548, 2322, 2357, 3096, 4644, 4714, 7071, 9288, 9428, 14142, 18856, 21213, 28284, 42426, 56568, 63639, 84852, 101351, 127278, 169704, 202702, 254556, 304053, 405404, 509112, 608106, 810808, 912159, 1216212, 1824318, 2432424, 2736477, 3648636, 5472954, 7297272, 10945908, 21891816]

約数ペア:

[(1, 21891816), (2, 10945908), (3, 7297272), (4, 5472954), (6, 3648636), (8, 2736477), (9, 2432424), (12, 1824318), (18, 1216212), (24, 912159), (27, 810808), (36, 608106), (43, 509112), (54, 405404), (72, 304053), (86, 254556), (108, 202702), (129, 169704), (172, 127278), (216, 101351), (258, 84852), (344, 63639), (387, 56568), (516, 42426), (774, 28284), (1032, 21213), (1161, 18856), (1548, 14142), (2322, 9428), (2357, 9288), (3096, 7071), (4644, 4714)]