21897386

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 17915734

約数列:

[1, 2, 7, 14, 19, 38, 133, 191, 266, 382, 431, 862, 1337, 2674, 3017, 3629, 6034, 7258, 8189, 16378, 25403, 50806, 57323, 82321, 114646, 164642, 576247, 1152494, 1564099, 3128198, 10948693, 21897386]

約数ペア:

[(1, 21897386), (2, 10948693), (7, 3128198), (14, 1564099), (19, 1152494), (38, 576247), (133, 164642), (191, 114646), (266, 82321), (382, 57323), (431, 50806), (862, 25403), (1337, 16378), (2674, 8189), (3017, 7258), (3629, 6034)]