19004984

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 18060616

約数列:

[1, 2, 4, 8, 31, 62, 124, 197, 248, 389, 394, 778, 788, 1556, 1576, 3112, 6107, 12059, 12214, 24118, 24428, 48236, 48856, 76633, 96472, 153266, 306532, 613064, 2375623, 4751246, 9502492, 19004984]

約数ペア:

[(1, 19004984), (2, 9502492), (4, 4751246), (8, 2375623), (31, 613064), (62, 306532), (124, 153266), (197, 96472), (248, 76633), (389, 48856), (394, 48236), (778, 24428), (788, 24118), (1556, 12214), (1576, 12059), (3112, 6107)]