20786784187

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1933}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 25227560160

約数和(自身を除く): 4440775973

約数列:

[1, 13, 17, 19, 169, 197, 221, 247, 323, 1933, 2561, 2873, 3211, 3349, 3743, 4199, 25129, 32861, 33293, 36727, 43537, 48659, 54587, 63631, 326677, 380801, 427193, 477451, 565981, 624359, 632567, 827203, 4950413, 5553509, 6206863, 6473617, 7235219, 8116667, 10753639, 64355369, 84157021, 94057847, 105516671, 122998723, 1094041273, 1222752011, 1598983399, 20786784187]

約数ペア:

[(1, 20786784187), (13, 1598983399), (17, 1222752011), (19, 1094041273), (169, 122998723), (197, 105516671), (221, 94057847), (247, 84157021), (323, 64355369), (1933, 10753639), (2561, 8116667), (2873, 7235219), (3211, 6473617), (3349, 6206863), (3743, 5553509), (4199, 4950413), (25129, 827203), (32861, 632567), (33293, 624359), (36727, 565981), (43537, 477451), (48659, 427193), (54587, 380801), (63631, 326677)]