687291237

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{148861}}^1$

素因数の和:148895

約数の個数: 24

約数和(自身を含む): 1083715360

約数和(自身を除く): 396424123

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 148861, 446583, 1339749, 2828359, 4019247, 8485077, 12057741, 25455231, 36173223, 76365693, 229097079, 687291237]

約数ペア:

[(1, 687291237), (3, 229097079), (9, 76365693), (19, 36173223), (27, 25455231), (57, 12057741), (81, 8485077), (171, 4019247), (243, 2828359), (513, 1339749), (1539, 446583), (4617, 148861)]