19857794

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2647}}^1$

素因数の和:2702

約数の個数: 24

約数和(自身を含む): 33809664

約数和(自身を除く): 13951870

約数列:

[1, 2, 11, 22, 31, 62, 121, 242, 341, 682, 2647, 3751, 5294, 7502, 29117, 58234, 82057, 164114, 320287, 640574, 902627, 1805254, 9928897, 19857794]

約数ペア:

[(1, 19857794), (2, 9928897), (11, 1805254), (22, 902627), (31, 640574), (62, 320287), (121, 164114), (242, 82057), (341, 58234), (682, 29117), (2647, 7502), (3751, 5294)]