18905418

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 96

約数和(自身を含む): 50544000

約数和(自身を除く): 31638582

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 53, 57, 63, 106, 114, 126, 133, 149, 159, 171, 266, 298, 318, 342, 371, 399, 447, 477, 742, 798, 894, 954, 1007, 1043, 1113, 1197, 1341, 2014, 2086, 2226, 2394, 2682, 2831, 3021, 3129, 3339, 5662, 6042, 6258, 6678, 7049, 7897, 8493, 9063, 9387, 14098, 15794, 16986, 18126, 18774, 19817, 21147, 23691, 25479, 39634, 42294, 47382, 50958, 55279, 59451, 63441, 71073, 110558, 118902, 126882, 142146, 150043, 165837, 178353, 300086, 331674, 356706, 450129, 497511, 900258, 995022, 1050301, 1350387, 2100602, 2700774, 3150903, 6301806, 9452709, 18905418]

約数ペア:

[(1, 18905418), (2, 9452709), (3, 6301806), (6, 3150903), (7, 2700774), (9, 2100602), (14, 1350387), (18, 1050301), (19, 995022), (21, 900258), (38, 497511), (42, 450129), (53, 356706), (57, 331674), (63, 300086), (106, 178353), (114, 165837), (126, 150043), (133, 142146), (149, 126882), (159, 118902), (171, 110558), (266, 71073), (298, 63441), (318, 59451), (342, 55279), (371, 50958), (399, 47382), (447, 42294), (477, 39634), (742, 25479), (798, 23691), (894, 21147), (954, 19817), (1007, 18774), (1043, 18126), (1113, 16986), (1197, 15794), (1341, 14098), (2014, 9387), (2086, 9063), (2226, 8493), (2394, 7897), (2682, 7049), (2831, 6678), (3021, 6258), (3129, 6042), (3339, 5662)]