19378898

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 20019502

約数列:

[1, 2, 7, 11, 14, 19, 22, 37, 38, 74, 77, 133, 154, 179, 209, 259, 266, 358, 407, 418, 518, 703, 814, 1253, 1406, 1463, 1969, 2506, 2849, 2926, 3401, 3938, 4921, 5698, 6623, 6802, 7733, 9842, 13246, 13783, 15466, 23807, 27566, 37411, 46361, 47614, 54131, 72853, 74822, 92722, 108262, 125837, 145706, 251674, 261877, 509971, 523754, 880859, 1019942, 1384207, 1761718, 2768414, 9689449, 19378898]

約数ペア:

[(1, 19378898), (2, 9689449), (7, 2768414), (11, 1761718), (14, 1384207), (19, 1019942), (22, 880859), (37, 523754), (38, 509971), (74, 261877), (77, 251674), (133, 145706), (154, 125837), (179, 108262), (209, 92722), (259, 74822), (266, 72853), (358, 54131), (407, 47614), (418, 46361), (518, 37411), (703, 27566), (814, 23807), (1253, 15466), (1406, 13783), (1463, 13246), (1969, 9842), (2506, 7733), (2849, 6802), (2926, 6623), (3401, 5698), (3938, 4921)]