19802672

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30187}}^1$

素因数の和:30236

約数の個数: 20

約数和(自身を含む): 39304776

約数和(自身を除く): 19502104

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30187, 60374, 120748, 241496, 482992, 1237667, 2475334, 4950668, 9901336, 19802672]

約数ペア:

[(1, 19802672), (2, 9901336), (4, 4950668), (8, 2475334), (16, 1237667), (41, 482992), (82, 241496), (164, 120748), (328, 60374), (656, 30187)]