18504990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{9791}}^1$

素因数の和:9814

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 37896930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 9791, 19582, 29373, 48955, 58746, 68537, 88119, 97910, 137074, 146865, 176238, 205611, 264357, 293730, 342685, 411222, 440595, 528714, 616833, 685370, 881190, 1028055, 1233666, 1321785, 1850499, 2056110, 2643570, 3084165, 3700998, 6168330, 9252495, 18504990]

約数ペア:

[(1, 18504990), (2, 9252495), (3, 6168330), (5, 3700998), (6, 3084165), (7, 2643570), (9, 2056110), (10, 1850499), (14, 1321785), (15, 1233666), (18, 1028055), (21, 881190), (27, 685370), (30, 616833), (35, 528714), (42, 440595), (45, 411222), (54, 342685), (63, 293730), (70, 264357), (90, 205611), (105, 176238), (126, 146865), (135, 137074), (189, 97910), (210, 88119), (270, 68537), (315, 58746), (378, 48955), (630, 29373), (945, 19582), (1890, 9791)]