19243994

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 19463206

約数列:

[1, 2, 7, 11, 14, 22, 29, 31, 58, 62, 77, 139, 154, 203, 217, 278, 319, 341, 406, 434, 638, 682, 899, 973, 1529, 1798, 1946, 2233, 2387, 3058, 4031, 4309, 4466, 4774, 6293, 8062, 8618, 9889, 10703, 12586, 19778, 21406, 28217, 30163, 44341, 47399, 56434, 60326, 69223, 88682, 94798, 124961, 138446, 249922, 310387, 331793, 620774, 663586, 874727, 1374571, 1749454, 2749142, 9621997, 19243994]

約数ペア:

[(1, 19243994), (2, 9621997), (7, 2749142), (11, 1749454), (14, 1374571), (22, 874727), (29, 663586), (31, 620774), (58, 331793), (62, 310387), (77, 249922), (139, 138446), (154, 124961), (203, 94798), (217, 88682), (278, 69223), (319, 60326), (341, 56434), (406, 47399), (434, 44341), (638, 30163), (682, 28217), (899, 21406), (973, 19778), (1529, 12586), (1798, 10703), (1946, 9889), (2233, 8618), (2387, 8062), (3058, 6293), (4031, 4774), (4309, 4466)]