21299280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88747}}^1$

素因数の和:88763

約数の個数: 40

約数和(自身を含む): 66028512

約数和(自身を除く): 44729232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88747, 177494, 266241, 354988, 443735, 532482, 709976, 887470, 1064964, 1331205, 1419952, 1774940, 2129928, 2662410, 3549880, 4259856, 5324820, 7099760, 10649640, 21299280]

約数ペア:

[(1, 21299280), (2, 10649640), (3, 7099760), (4, 5324820), (5, 4259856), (6, 3549880), (8, 2662410), (10, 2129928), (12, 1774940), (15, 1419952), (16, 1331205), (20, 1064964), (24, 887470), (30, 709976), (40, 532482), (48, 443735), (60, 354988), (80, 266241), (120, 177494), (240, 88747)]