21213000

素因数分解:

$2^3\times 3^2\times 5^3\times {\mathrm{2357}}^1$

素因数の和:2384

約数の個数: 96

約数和(自身を含む): 71730360

約数和(自身を除く): 50517360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 750, 900, 1000, 1125, 1500, 1800, 2250, 2357, 3000, 4500, 4714, 7071, 9000, 9428, 11785, 14142, 18856, 21213, 23570, 28284, 35355, 42426, 47140, 56568, 58925, 70710, 84852, 94280, 106065, 117850, 141420, 169704, 176775, 212130, 235700, 282840, 294625, 353550, 424260, 471400, 530325, 589250, 707100, 848520, 883875, 1060650, 1178500, 1414200, 1767750, 2121300, 2357000, 2651625, 3535500, 4242600, 5303250, 7071000, 10606500, 21213000]

約数ペア:

[(1, 21213000), (2, 10606500), (3, 7071000), (4, 5303250), (5, 4242600), (6, 3535500), (8, 2651625), (9, 2357000), (10, 2121300), (12, 1767750), (15, 1414200), (18, 1178500), (20, 1060650), (24, 883875), (25, 848520), (30, 707100), (36, 589250), (40, 530325), (45, 471400), (50, 424260), (60, 353550), (72, 294625), (75, 282840), (90, 235700), (100, 212130), (120, 176775), (125, 169704), (150, 141420), (180, 117850), (200, 106065), (225, 94280), (250, 84852), (300, 70710), (360, 58925), (375, 56568), (450, 47140), (500, 42426), (600, 35355), (750, 28284), (900, 23570), (1000, 21213), (1125, 18856), (1500, 14142), (1800, 11785), (2250, 9428), (2357, 9000), (3000, 7071), (4500, 4714)]