19164656

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1249}}^1$

素因数の和:1401

約数の個数: 40

約数和(自身を含む): 42780000

約数和(自身を除く): 23615344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1249, 1918, 2192, 2498, 3836, 4996, 7672, 8743, 9992, 15344, 17486, 19984, 34972, 69944, 139888, 171113, 342226, 684452, 1197791, 1368904, 2395582, 2737808, 4791164, 9582328, 19164656]

約数ペア:

[(1, 19164656), (2, 9582328), (4, 4791164), (7, 2737808), (8, 2395582), (14, 1368904), (16, 1197791), (28, 684452), (56, 342226), (112, 171113), (137, 139888), (274, 69944), (548, 34972), (959, 19984), (1096, 17486), (1249, 15344), (1918, 9992), (2192, 8743), (2498, 7672), (3836, 4996)]