215721436

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{8017}}^1$

素因数の和:8090

約数の個数: 36

約数和(自身を含む): 445864944

約数和(自身を除く): 230143508

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 961, 1922, 3844, 6727, 8017, 13454, 16034, 26908, 32068, 56119, 112238, 224476, 248527, 497054, 994108, 1739689, 3479378, 6958756, 7704337, 15408674, 30817348, 53930359, 107860718, 215721436]

約数ペア:

[(1, 215721436), (2, 107860718), (4, 53930359), (7, 30817348), (14, 15408674), (28, 7704337), (31, 6958756), (62, 3479378), (124, 1739689), (217, 994108), (434, 497054), (868, 248527), (961, 224476), (1922, 112238), (3844, 56119), (6727, 32068), (8017, 26908), (13454, 16034)]