18660796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 41690880

約数和(自身を除く): 23030084

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1409, 1892, 2818, 3311, 5636, 6622, 9863, 13244, 15499, 19726, 30998, 39452, 60587, 61996, 108493, 121174, 216986, 242348, 424109, 433972, 666457, 848218, 1332914, 1696436, 2665828, 4665199, 9330398, 18660796]

約数ペア:

[(1, 18660796), (2, 9330398), (4, 4665199), (7, 2665828), (11, 1696436), (14, 1332914), (22, 848218), (28, 666457), (43, 433972), (44, 424109), (77, 242348), (86, 216986), (154, 121174), (172, 108493), (301, 61996), (308, 60587), (473, 39452), (602, 30998), (946, 19726), (1204, 15499), (1409, 13244), (1892, 9863), (2818, 6622), (3311, 5636)]