21504420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5689}}^1$

素因数の和:5714

約数の個数: 96

約数和(自身を含む): 76473600

約数和(自身を除く): 54969180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5689, 11378, 17067, 22756, 28445, 34134, 39823, 51201, 56890, 68268, 79646, 85335, 102402, 113780, 119469, 153603, 159292, 170670, 199115, 204804, 238938, 256005, 307206, 341340, 358407, 398230, 477876, 512010, 597345, 614412, 716814, 768015, 796460, 1024020, 1075221, 1194690, 1433628, 1536030, 1792035, 2150442, 2389380, 3072060, 3584070, 4300884, 5376105, 7168140, 10752210, 21504420]

約数ペア:

[(1, 21504420), (2, 10752210), (3, 7168140), (4, 5376105), (5, 4300884), (6, 3584070), (7, 3072060), (9, 2389380), (10, 2150442), (12, 1792035), (14, 1536030), (15, 1433628), (18, 1194690), (20, 1075221), (21, 1024020), (27, 796460), (28, 768015), (30, 716814), (35, 614412), (36, 597345), (42, 512010), (45, 477876), (54, 398230), (60, 358407), (63, 341340), (70, 307206), (84, 256005), (90, 238938), (105, 204804), (108, 199115), (126, 170670), (135, 159292), (140, 153603), (180, 119469), (189, 113780), (210, 102402), (252, 85335), (270, 79646), (315, 68268), (378, 56890), (420, 51201), (540, 39823), (630, 34134), (756, 28445), (945, 22756), (1260, 17067), (1890, 11378), (3780, 5689)]