18933746

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 31987200

約数和(自身を除く): 13053454

約数列:

[1, 2, 13, 26, 31, 62, 139, 169, 278, 338, 403, 806, 1807, 2197, 3614, 4309, 4394, 5239, 8618, 10478, 23491, 46982, 56017, 68107, 112034, 136214, 305383, 610766, 728221, 1456442, 9466873, 18933746]

約数ペア:

[(1, 18933746), (2, 9466873), (13, 1456442), (26, 728221), (31, 610766), (62, 305383), (139, 136214), (169, 112034), (278, 68107), (338, 56017), (403, 46982), (806, 23491), (1807, 10478), (2197, 8618), (3614, 5239), (4309, 4394)]