18961987

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3271}}^1$

素因数の和:3330

約数の個数: 16

約数和(自身を含む): 22616064

約数和(自身を除く): 3654077

約数列:

[1, 11, 17, 31, 187, 341, 527, 3271, 5797, 35981, 55607, 101401, 611677, 1115411, 1723817, 18961987]

約数ペア:

[(1, 18961987), (11, 1723817), (17, 1115411), (31, 611677), (187, 101401), (341, 55607), (527, 35981), (3271, 5797)]