21025844

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4973}}^1$

素因数の和:5135

約数の個数: 24

約数和(自身を含む): 42338688

約数和(自身を除く): 21312844

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 4973, 9946, 19892, 34811, 69622, 139244, 750923, 1501846, 3003692, 5256461, 10512922, 21025844]

約数ペア:

[(1, 21025844), (2, 10512922), (4, 5256461), (7, 3003692), (14, 1501846), (28, 750923), (151, 139244), (302, 69622), (604, 34811), (1057, 19892), (2114, 9946), (4228, 4973)]