19380790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13553}}^1$

素因数の和:13584

約数の個数: 32

約数和(自身を含む): 40987296

約数和(自身を除く): 21606506

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 13553, 27106, 67765, 135530, 149083, 176189, 298166, 352378, 745415, 880945, 1490830, 1761890, 1938079, 3876158, 9690395, 19380790]

約数ペア:

[(1, 19380790), (2, 9690395), (5, 3876158), (10, 1938079), (11, 1761890), (13, 1490830), (22, 880945), (26, 745415), (55, 352378), (65, 298166), (110, 176189), (130, 149083), (143, 135530), (286, 67765), (715, 27106), (1430, 13553)]