21003570

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11113}}^1$

素因数の和:11136

約数の個数: 64

約数和(自身を含む): 64016640

約数和(自身を除く): 43013070

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11113, 22226, 33339, 55565, 66678, 77791, 100017, 111130, 155582, 166695, 200034, 233373, 300051, 333390, 388955, 466746, 500085, 600102, 700119, 777910, 1000170, 1166865, 1400238, 1500255, 2100357, 2333730, 3000510, 3500595, 4200714, 7001190, 10501785, 21003570]

約数ペア:

[(1, 21003570), (2, 10501785), (3, 7001190), (5, 4200714), (6, 3500595), (7, 3000510), (9, 2333730), (10, 2100357), (14, 1500255), (15, 1400238), (18, 1166865), (21, 1000170), (27, 777910), (30, 700119), (35, 600102), (42, 500085), (45, 466746), (54, 388955), (63, 333390), (70, 300051), (90, 233373), (105, 200034), (126, 166695), (135, 155582), (189, 111130), (210, 100017), (270, 77791), (315, 66678), (378, 55565), (630, 33339), (945, 22226), (1890, 11113)]