18423886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 31999968

約数和(自身を除く): 13576082

約数列:

[1, 2, 13, 17, 26, 34, 73, 146, 221, 442, 571, 949, 1142, 1241, 1898, 2482, 7423, 9707, 14846, 16133, 19414, 32266, 41683, 83366, 126191, 252382, 541879, 708611, 1083758, 1417222, 9211943, 18423886]

約数ペア:

[(1, 18423886), (2, 9211943), (13, 1417222), (17, 1083758), (26, 708611), (34, 541879), (73, 252382), (146, 126191), (221, 83366), (442, 41683), (571, 32266), (949, 19414), (1142, 16133), (1241, 14846), (1898, 9707), (2482, 7423)]