19996245882

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{1297}}^1\times {\mathrm{19919}}^1$

素因数の和:21267

約数の個数: 48

約数和(自身を含む): 44369170560

約数和(自身を除く): 24372924678

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 1297, 2594, 3891, 7782, 11673, 19919, 23346, 39838, 55771, 59757, 111542, 119514, 167313, 179271, 334626, 358542, 501939, 856517, 1003878, 1713034, 2569551, 5139102, 7708653, 15417306, 25834943, 51669886, 77504829, 155009658, 232514487, 465028974, 1110902549, 2221805098, 3332707647, 6665415294, 9998122941, 19996245882]

約数ペア:

[(1, 19996245882), (2, 9998122941), (3, 6665415294), (6, 3332707647), (9, 2221805098), (18, 1110902549), (43, 465028974), (86, 232514487), (129, 155009658), (258, 77504829), (387, 51669886), (774, 25834943), (1297, 15417306), (2594, 7708653), (3891, 5139102), (7782, 2569551), (11673, 1713034), (19919, 1003878), (23346, 856517), (39838, 501939), (55771, 358542), (59757, 334626), (111542, 179271), (119514, 167313)]