21410520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2663}}^1$

素因数の和:2744

約数の個数: 64

約数和(自身を含む): 65214720

約数和(自身を除く): 43804200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 120, 134, 201, 268, 335, 402, 536, 670, 804, 1005, 1340, 1608, 2010, 2663, 2680, 4020, 5326, 7989, 8040, 10652, 13315, 15978, 21304, 26630, 31956, 39945, 53260, 63912, 79890, 106520, 159780, 178421, 319560, 356842, 535263, 713684, 892105, 1070526, 1427368, 1784210, 2141052, 2676315, 3568420, 4282104, 5352630, 7136840, 10705260, 21410520]

約数ペア:

[(1, 21410520), (2, 10705260), (3, 7136840), (4, 5352630), (5, 4282104), (6, 3568420), (8, 2676315), (10, 2141052), (12, 1784210), (15, 1427368), (20, 1070526), (24, 892105), (30, 713684), (40, 535263), (60, 356842), (67, 319560), (120, 178421), (134, 159780), (201, 106520), (268, 79890), (335, 63912), (402, 53260), (536, 39945), (670, 31956), (804, 26630), (1005, 21304), (1340, 15978), (1608, 13315), (2010, 10652), (2663, 8040), (2680, 7989), (4020, 5326)]