18921210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8191}}^1$

素因数の和:8219

約数の個数: 64

約数和(自身を含む): 56623104

約数和(自身を除く): 37701894

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 330, 385, 462, 770, 1155, 2310, 8191, 16382, 24573, 40955, 49146, 57337, 81910, 90101, 114674, 122865, 172011, 180202, 245730, 270303, 286685, 344022, 450505, 540606, 573370, 630707, 860055, 901010, 1261414, 1351515, 1720110, 1892121, 2703030, 3153535, 3784242, 6307070, 9460605, 18921210]

約数ペア:

[(1, 18921210), (2, 9460605), (3, 6307070), (5, 3784242), (6, 3153535), (7, 2703030), (10, 1892121), (11, 1720110), (14, 1351515), (15, 1261414), (21, 901010), (22, 860055), (30, 630707), (33, 573370), (35, 540606), (42, 450505), (55, 344022), (66, 286685), (70, 270303), (77, 245730), (105, 180202), (110, 172011), (154, 122865), (165, 114674), (210, 90101), (231, 81910), (330, 57337), (385, 49146), (462, 40955), (770, 24573), (1155, 16382), (2310, 8191)]