18969886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 32104800

約数和(自身を除く): 13134914

約数列:

[1, 2, 13, 26, 29, 58, 139, 181, 278, 362, 377, 754, 1807, 2353, 3614, 4031, 4706, 5249, 8062, 10498, 25159, 50318, 52403, 68237, 104806, 136474, 327067, 654134, 729611, 1459222, 9484943, 18969886]

約数ペア:

[(1, 18969886), (2, 9484943), (13, 1459222), (26, 729611), (29, 654134), (58, 327067), (139, 136474), (181, 104806), (278, 68237), (362, 52403), (377, 50318), (754, 25159), (1807, 10498), (2353, 8062), (3614, 5249), (4031, 4706)]