21938483

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 28938240

約数和(自身を除く): 6999757

約数列:

[1, 7, 17, 19, 31, 119, 133, 217, 313, 323, 527, 589, 2191, 2261, 3689, 4123, 5321, 5947, 9703, 10013, 37247, 41629, 67921, 70091, 101099, 164951, 184357, 707693, 1154657, 1290499, 3134069, 21938483]

約数ペア:

[(1, 21938483), (7, 3134069), (17, 1290499), (19, 1154657), (31, 707693), (119, 184357), (133, 164951), (217, 101099), (313, 70091), (323, 67921), (527, 41629), (589, 37247), (2191, 10013), (2261, 9703), (3689, 5947), (4123, 5321)]