19511986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5399}}^1$

素因数の和:5553

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 12240014

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5399, 10798, 70187, 140374, 750461, 1500922, 9755993, 19511986]

約数ペア:

[(1, 19511986), (2, 9755993), (13, 1500922), (26, 750461), (139, 140374), (278, 70187), (1807, 10798), (3614, 5399)]