21491232

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31981}}^1$

素因数の和:32001

約数の個数: 48

約数和(自身を含む): 64475712

約数和(自身を除く): 42984480

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31981, 63962, 95943, 127924, 191886, 223867, 255848, 383772, 447734, 511696, 671601, 767544, 895468, 1023392, 1343202, 1535088, 1790936, 2686404, 3070176, 3581872, 5372808, 7163744, 10745616, 21491232]

約数ペア:

[(1, 21491232), (2, 10745616), (3, 7163744), (4, 5372808), (6, 3581872), (7, 3070176), (8, 2686404), (12, 1790936), (14, 1535088), (16, 1343202), (21, 1023392), (24, 895468), (28, 767544), (32, 671601), (42, 511696), (48, 447734), (56, 383772), (84, 255848), (96, 223867), (112, 191886), (168, 127924), (224, 95943), (336, 63962), (672, 31981)]