21399392

素因数分解:

$2^5\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1151}}^1$

素因数の和:1251

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 27371680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 83, 112, 166, 224, 332, 581, 664, 1151, 1162, 1328, 2302, 2324, 2656, 4604, 4648, 8057, 9208, 9296, 16114, 18416, 18592, 32228, 36832, 64456, 95533, 128912, 191066, 257824, 382132, 668731, 764264, 1337462, 1528528, 2674924, 3057056, 5349848, 10699696, 21399392]

約数ペア:

[(1, 21399392), (2, 10699696), (4, 5349848), (7, 3057056), (8, 2674924), (14, 1528528), (16, 1337462), (28, 764264), (32, 668731), (56, 382132), (83, 257824), (112, 191066), (166, 128912), (224, 95533), (332, 64456), (581, 36832), (664, 32228), (1151, 18592), (1162, 18416), (1328, 16114), (2302, 9296), (2324, 9208), (2656, 8057), (4604, 4648)]