21080538

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1163}}^1$

素因数の和:1243

約数の個数: 48

約数和(自身を含む): 49027680

約数和(自身を除く): 27947142

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 53, 57, 106, 114, 159, 171, 318, 342, 477, 954, 1007, 1163, 2014, 2326, 3021, 3489, 6042, 6978, 9063, 10467, 18126, 20934, 22097, 44194, 61639, 66291, 123278, 132582, 184917, 198873, 369834, 397746, 554751, 1109502, 1171141, 2342282, 3513423, 7026846, 10540269, 21080538]

約数ペア:

[(1, 21080538), (2, 10540269), (3, 7026846), (6, 3513423), (9, 2342282), (18, 1171141), (19, 1109502), (38, 554751), (53, 397746), (57, 369834), (106, 198873), (114, 184917), (159, 132582), (171, 123278), (318, 66291), (342, 61639), (477, 44194), (954, 22097), (1007, 20934), (1163, 18126), (2014, 10467), (2326, 9063), (3021, 6978), (3489, 6042)]