21986458

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{44507}}^1$

素因数の和:44541

約数の個数: 16

約数和(自身を含む): 37386720

約数和(自身を除く): 15400262

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 44507, 89014, 578591, 845633, 1157182, 1691266, 10993229, 21986458]

約数ペア:

[(1, 21986458), (2, 10993229), (13, 1691266), (19, 1157182), (26, 845633), (38, 578591), (247, 89014), (494, 44507)]