19666736

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{6791}}^1$

素因数の和:6980

約数の個数: 20

約数和(自身を含む): 38320464

約数和(自身を除く): 18653728

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 6791, 13582, 27164, 54328, 108656, 1229171, 2458342, 4916684, 9833368, 19666736]

約数ペア:

[(1, 19666736), (2, 9833368), (4, 4916684), (8, 2458342), (16, 1229171), (181, 108656), (362, 54328), (724, 27164), (1448, 13582), (2896, 6791)]