21957000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{563}}^1$

素因数の和:600

約数の個数: 128

約数和(自身を含む): 73906560

約数和(自身を除く): 51949560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 500, 520, 563, 600, 650, 750, 780, 975, 1000, 1126, 1300, 1500, 1560, 1625, 1689, 1950, 2252, 2600, 2815, 3000, 3250, 3378, 3900, 4504, 4875, 5630, 6500, 6756, 7319, 7800, 8445, 9750, 11260, 13000, 13512, 14075, 14638, 16890, 19500, 21957, 22520, 28150, 29276, 33780, 36595, 39000, 42225, 43914, 56300, 58552, 67560, 70375, 73190, 84450, 87828, 109785, 112600, 140750, 146380, 168900, 175656, 182975, 211125, 219570, 281500, 292760, 337800, 365950, 422250, 439140, 548925, 563000, 731900, 844500, 878280, 914875, 1097850, 1463800, 1689000, 1829750, 2195700, 2744625, 3659500, 4391400, 5489250, 7319000, 10978500, 21957000]

約数ペア:

[(1, 21957000), (2, 10978500), (3, 7319000), (4, 5489250), (5, 4391400), (6, 3659500), (8, 2744625), (10, 2195700), (12, 1829750), (13, 1689000), (15, 1463800), (20, 1097850), (24, 914875), (25, 878280), (26, 844500), (30, 731900), (39, 563000), (40, 548925), (50, 439140), (52, 422250), (60, 365950), (65, 337800), (75, 292760), (78, 281500), (100, 219570), (104, 211125), (120, 182975), (125, 175656), (130, 168900), (150, 146380), (156, 140750), (195, 112600), (200, 109785), (250, 87828), (260, 84450), (300, 73190), (312, 70375), (325, 67560), (375, 58552), (390, 56300), (500, 43914), (520, 42225), (563, 39000), (600, 36595), (650, 33780), (750, 29276), (780, 28150), (975, 22520), (1000, 21957), (1126, 19500), (1300, 16890), (1500, 14638), (1560, 14075), (1625, 13512), (1689, 13000), (1950, 11260), (2252, 9750), (2600, 8445), (2815, 7800), (3000, 7319), (3250, 6756), (3378, 6500), (3900, 5630), (4504, 4875)]