21173672

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15661}}^1$

素因数の和:15693

約数の個数: 24

約数和(自身を含む): 42992190

約数和(自身を除く): 21818518

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15661, 31322, 62644, 125288, 203593, 407186, 814372, 1628744, 2646709, 5293418, 10586836, 21173672]

約数ペア:

[(1, 21173672), (2, 10586836), (4, 5293418), (8, 2646709), (13, 1628744), (26, 814372), (52, 407186), (104, 203593), (169, 125288), (338, 62644), (676, 31322), (1352, 15661)]