18699856

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1621}}^1$

素因数の和:1739

約数の個数: 40

約数和(自身を含む): 41834624

約数和(自身を除く): 23134768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1621, 1648, 2884, 3242, 5768, 6484, 11347, 11536, 12968, 22694, 25936, 45388, 90776, 166963, 181552, 333926, 667852, 1168741, 1335704, 2337482, 2671408, 4674964, 9349928, 18699856]

約数ペア:

[(1, 18699856), (2, 9349928), (4, 4674964), (7, 2671408), (8, 2337482), (14, 1335704), (16, 1168741), (28, 667852), (56, 333926), (103, 181552), (112, 166963), (206, 90776), (412, 45388), (721, 25936), (824, 22694), (1442, 12968), (1621, 11536), (1648, 11347), (2884, 6484), (3242, 5768)]