644867391

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{619}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 1057372800

約数和(自身を除く): 412505409

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 373, 399, 619, 931, 1119, 1857, 2611, 2793, 4333, 7087, 7833, 11761, 12999, 18277, 21261, 30331, 35283, 49609, 54831, 82327, 90993, 148827, 230887, 246981, 347263, 576289, 692661, 1041789, 1616209, 1728867, 4386853, 4848627, 11313463, 13160559, 30707971, 33940389, 92123913, 214955797, 644867391]

約数ペア:

[(1, 644867391), (3, 214955797), (7, 92123913), (19, 33940389), (21, 30707971), (49, 13160559), (57, 11313463), (133, 4848627), (147, 4386853), (373, 1728867), (399, 1616209), (619, 1041789), (931, 692661), (1119, 576289), (1857, 347263), (2611, 246981), (2793, 230887), (4333, 148827), (7087, 90993), (7833, 82327), (11761, 54831), (12999, 49609), (18277, 35283), (21261, 30331)]