21351900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:811

約数の個数: 72

約数和(自身を含む): 62468224

約数和(自身を除く): 41116324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 103, 150, 206, 300, 309, 412, 515, 618, 691, 1030, 1236, 1382, 1545, 2060, 2073, 2575, 2764, 3090, 3455, 4146, 5150, 6180, 6910, 7725, 8292, 10300, 10365, 13820, 15450, 17275, 20730, 30900, 34550, 41460, 51825, 69100, 71173, 103650, 142346, 207300, 213519, 284692, 355865, 427038, 711730, 854076, 1067595, 1423460, 1779325, 2135190, 3558650, 4270380, 5337975, 7117300, 10675950, 21351900]

約数ペア:

[(1, 21351900), (2, 10675950), (3, 7117300), (4, 5337975), (5, 4270380), (6, 3558650), (10, 2135190), (12, 1779325), (15, 1423460), (20, 1067595), (25, 854076), (30, 711730), (50, 427038), (60, 355865), (75, 284692), (100, 213519), (103, 207300), (150, 142346), (206, 103650), (300, 71173), (309, 69100), (412, 51825), (515, 41460), (618, 34550), (691, 30900), (1030, 20730), (1236, 17275), (1382, 15450), (1545, 13820), (2060, 10365), (2073, 10300), (2575, 8292), (2764, 7725), (3090, 6910), (3455, 6180), (4146, 5150)]