21693400

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1373}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 51112800

約数和(自身を除く): 29419400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1373, 1580, 1975, 2746, 3160, 3950, 5492, 6865, 7900, 10984, 13730, 15800, 27460, 34325, 54920, 68650, 108467, 137300, 216934, 274600, 433868, 542335, 867736, 1084670, 2169340, 2711675, 4338680, 5423350, 10846700, 21693400]

約数ペア:

[(1, 21693400), (2, 10846700), (4, 5423350), (5, 4338680), (8, 2711675), (10, 2169340), (20, 1084670), (25, 867736), (40, 542335), (50, 433868), (79, 274600), (100, 216934), (158, 137300), (200, 108467), (316, 68650), (395, 54920), (632, 34325), (790, 27460), (1373, 15800), (1580, 13730), (1975, 10984), (2746, 7900), (3160, 6865), (3950, 5492)]