209225121

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{4019}}^1$

素因数の和:4133

約数の個数: 32

約数和(自身を含む): 332405760

約数和(自身を除く): 123180639

約数列:

[1, 3, 7, 21, 37, 67, 111, 201, 259, 469, 777, 1407, 2479, 4019, 7437, 12057, 17353, 28133, 52059, 84399, 148703, 269273, 446109, 807819, 1040921, 1884911, 3122763, 5654733, 9963101, 29889303, 69741707, 209225121]

約数ペア:

[(1, 209225121), (3, 69741707), (7, 29889303), (21, 9963101), (37, 5654733), (67, 3122763), (111, 1884911), (201, 1040921), (259, 807819), (469, 446109), (777, 269273), (1407, 148703), (2479, 84399), (4019, 52059), (7437, 28133), (12057, 17353)]