19531708

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 22985732

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 119, 148, 238, 259, 476, 518, 629, 1036, 1109, 1258, 2218, 2516, 4403, 4436, 7763, 8806, 15526, 17612, 18853, 31052, 37706, 41033, 75412, 82066, 131971, 164132, 263942, 287231, 527884, 574462, 697561, 1148924, 1395122, 2790244, 4882927, 9765854, 19531708]

約数ペア:

[(1, 19531708), (2, 9765854), (4, 4882927), (7, 2790244), (14, 1395122), (17, 1148924), (28, 697561), (34, 574462), (37, 527884), (68, 287231), (74, 263942), (119, 164132), (148, 131971), (238, 82066), (259, 75412), (476, 41033), (518, 37706), (629, 31052), (1036, 18853), (1109, 17612), (1258, 15526), (2218, 8806), (2516, 7763), (4403, 4436)]