21691368

素因数分解:

$2^3\times 3^3\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 38961432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 233, 431, 466, 699, 862, 932, 1293, 1398, 1724, 1864, 2097, 2586, 2796, 3448, 3879, 4194, 5172, 5592, 6291, 7758, 8388, 10344, 11637, 12582, 15516, 16776, 23274, 25164, 31032, 46548, 50328, 93096, 100423, 200846, 301269, 401692, 602538, 803384, 903807, 1205076, 1807614, 2410152, 2711421, 3615228, 5422842, 7230456, 10845684, 21691368]

約数ペア:

[(1, 21691368), (2, 10845684), (3, 7230456), (4, 5422842), (6, 3615228), (8, 2711421), (9, 2410152), (12, 1807614), (18, 1205076), (24, 903807), (27, 803384), (36, 602538), (54, 401692), (72, 301269), (108, 200846), (216, 100423), (233, 93096), (431, 50328), (466, 46548), (699, 31032), (862, 25164), (932, 23274), (1293, 16776), (1398, 15516), (1724, 12582), (1864, 11637), (2097, 10344), (2586, 8388), (2796, 7758), (3448, 6291), (3879, 5592), (4194, 5172)]