90903771

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{571}}^1$

素因数の和:629

約数の個数: 54

約数和(自身を含む): 161487612

約数和(自身を除く): 70583841

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 361, 399, 441, 571, 931, 1083, 1197, 1713, 2527, 2793, 3249, 3997, 5139, 7581, 8379, 10849, 11991, 17689, 22743, 27979, 32547, 35973, 53067, 75943, 83937, 97641, 159201, 206131, 227829, 251811, 531601, 618393, 683487, 1442917, 1594803, 1855179, 4328751, 4784409, 10100419, 12986253, 30301257, 90903771]

約数ペア:

[(1, 90903771), (3, 30301257), (7, 12986253), (9, 10100419), (19, 4784409), (21, 4328751), (49, 1855179), (57, 1594803), (63, 1442917), (133, 683487), (147, 618393), (171, 531601), (361, 251811), (399, 227829), (441, 206131), (571, 159201), (931, 97641), (1083, 83937), (1197, 75943), (1713, 53067), (2527, 35973), (2793, 32547), (3249, 27979), (3997, 22743), (5139, 17689), (7581, 11991), (8379, 10849)]