19199818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 32722560

約数和(自身を除く): 13522742

約数列:

[1, 2, 11, 22, 37, 74, 103, 206, 229, 407, 458, 814, 1133, 2266, 2519, 3811, 5038, 7622, 8473, 16946, 23587, 41921, 47174, 83842, 93203, 186406, 259457, 518914, 872719, 1745438, 9599909, 19199818]

約数ペア:

[(1, 19199818), (2, 9599909), (11, 1745438), (22, 872719), (37, 518914), (74, 259457), (103, 186406), (206, 93203), (229, 83842), (407, 47174), (458, 41921), (814, 23587), (1133, 16946), (2266, 8473), (2519, 7622), (3811, 5038)]