20668049948

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3340021}}^1$

素因数の和:3340062

約数の個数: 48

約数和(自身を含む): 47134390464

約数和(自身を除く): 26466340516

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 6188, 3340021, 6680042, 13360084, 23380147, 43420273, 46760294, 56780357, 86840546, 93520588, 113560714, 173681092, 227121428, 303941911, 397462499, 607883822, 738144641, 794924998, 1215767644, 1476289282, 1589849996, 2952578564, 5167012487, 10334024974, 20668049948]

約数ペア:

[(1, 20668049948), (2, 10334024974), (4, 5167012487), (7, 2952578564), (13, 1589849996), (14, 1476289282), (17, 1215767644), (26, 794924998), (28, 738144641), (34, 607883822), (52, 397462499), (68, 303941911), (91, 227121428), (119, 173681092), (182, 113560714), (221, 93520588), (238, 86840546), (364, 56780357), (442, 46760294), (476, 43420273), (884, 23380147), (1547, 13360084), (3094, 6680042), (6188, 3340021)]