21647392

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3061}}^1$

素因数の和:3101

約数の個数: 48

約数和(自身を含む): 48612312

約数和(自身を除く): 26964920

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 3061, 3536, 6122, 7072, 12244, 24488, 39793, 48976, 52037, 79586, 97952, 104074, 159172, 208148, 318344, 416296, 636688, 676481, 832592, 1273376, 1352962, 1665184, 2705924, 5411848, 10823696, 21647392]

約数ペア:

[(1, 21647392), (2, 10823696), (4, 5411848), (8, 2705924), (13, 1665184), (16, 1352962), (17, 1273376), (26, 832592), (32, 676481), (34, 636688), (52, 416296), (68, 318344), (104, 208148), (136, 159172), (208, 104074), (221, 97952), (272, 79586), (416, 52037), (442, 48976), (544, 39793), (884, 24488), (1768, 12244), (3061, 7072), (3536, 6122)]