21007865281

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{593}}^1\times {\mathrm{1087}}^1$

素因数の和:1825

約数の個数: 32

約数和(自身を含む): 23886213120

約数和(自身を除く): 2878347839

約数列:

[1, 13, 23, 109, 299, 593, 1087, 1417, 2507, 7709, 13639, 14131, 25001, 32591, 64637, 118483, 177307, 325013, 644591, 840281, 1486651, 1540279, 2725109, 8379683, 14825593, 19326463, 35426417, 70260419, 192732709, 913385447, 1615989637, 21007865281]

約数ペア:

[(1, 21007865281), (13, 1615989637), (23, 913385447), (109, 192732709), (299, 70260419), (593, 35426417), (1087, 19326463), (1417, 14825593), (2507, 8379683), (7709, 2725109), (13639, 1540279), (14131, 1486651), (25001, 840281), (32591, 644591), (64637, 325013), (118483, 177307)]