19538704

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13721}}^1$

素因数の和:13818

約数の個数: 20

約数和(自身を含む): 38284380

約数和(自身を除く): 18745676

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13721, 27442, 54884, 109768, 219536, 1221169, 2442338, 4884676, 9769352, 19538704]

約数ペア:

[(1, 19538704), (2, 9769352), (4, 4884676), (8, 2442338), (16, 1221169), (89, 219536), (178, 109768), (356, 54884), (712, 27442), (1424, 13721)]