21543690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{593}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 59533056

約数和(自身を除く): 37989366

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 173, 210, 346, 519, 593, 865, 1038, 1186, 1211, 1730, 1779, 2422, 2595, 2965, 3558, 3633, 4151, 5190, 5930, 6055, 7266, 8302, 8895, 12110, 12453, 17790, 18165, 20755, 24906, 36330, 41510, 62265, 102589, 124530, 205178, 307767, 512945, 615534, 718123, 1025890, 1436246, 1538835, 2154369, 3077670, 3590615, 4308738, 7181230, 10771845, 21543690]

約数ペア:

[(1, 21543690), (2, 10771845), (3, 7181230), (5, 4308738), (6, 3590615), (7, 3077670), (10, 2154369), (14, 1538835), (15, 1436246), (21, 1025890), (30, 718123), (35, 615534), (42, 512945), (70, 307767), (105, 205178), (173, 124530), (210, 102589), (346, 62265), (519, 41510), (593, 36330), (865, 24906), (1038, 20755), (1186, 18165), (1211, 17790), (1730, 12453), (1779, 12110), (2422, 8895), (2595, 8302), (2965, 7266), (3558, 6055), (3633, 5930), (4151, 5190)]