18954508

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1439}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 34473600

約数和(自身を除く): 15519092

約数列:

[1, 2, 4, 37, 74, 89, 148, 178, 356, 1439, 2878, 3293, 5756, 6586, 13172, 53243, 106486, 128071, 212972, 256142, 512284, 4738627, 9477254, 18954508]

約数ペア:

[(1, 18954508), (2, 9477254), (4, 4738627), (37, 512284), (74, 256142), (89, 212972), (148, 128071), (178, 106486), (356, 53243), (1439, 13172), (2878, 6586), (3293, 5756)]