21231216

素因数分解:

$2^4\times 3^2\times {\mathrm{47}}^1\times {\mathrm{3137}}^1$

素因数の和:3198

約数の個数: 60

約数和(自身を含む): 60701472

約数和(自身を除く): 39470256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 47, 48, 72, 94, 141, 144, 188, 282, 376, 423, 564, 752, 846, 1128, 1692, 2256, 3137, 3384, 6274, 6768, 9411, 12548, 18822, 25096, 28233, 37644, 50192, 56466, 75288, 112932, 147439, 150576, 225864, 294878, 442317, 451728, 589756, 884634, 1179512, 1326951, 1769268, 2359024, 2653902, 3538536, 5307804, 7077072, 10615608, 21231216]

約数ペア:

[(1, 21231216), (2, 10615608), (3, 7077072), (4, 5307804), (6, 3538536), (8, 2653902), (9, 2359024), (12, 1769268), (16, 1326951), (18, 1179512), (24, 884634), (36, 589756), (47, 451728), (48, 442317), (72, 294878), (94, 225864), (141, 150576), (144, 147439), (188, 112932), (282, 75288), (376, 56466), (423, 50192), (564, 37644), (752, 28233), (846, 25096), (1128, 18822), (1692, 12548), (2256, 9411), (3137, 6768), (3384, 6274)]