19958816

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1931}}^1$

素因数の和:1977

約数の個数: 48

約数和(自身を含む): 43817760

約数和(自身を除く): 23858944

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 1931, 2584, 3862, 5168, 7724, 10336, 15448, 30896, 32827, 36689, 61792, 65654, 73378, 131308, 146756, 262616, 293512, 525232, 587024, 623713, 1050464, 1174048, 1247426, 2494852, 4989704, 9979408, 19958816]

約数ペア:

[(1, 19958816), (2, 9979408), (4, 4989704), (8, 2494852), (16, 1247426), (17, 1174048), (19, 1050464), (32, 623713), (34, 587024), (38, 525232), (68, 293512), (76, 262616), (136, 146756), (152, 131308), (272, 73378), (304, 65654), (323, 61792), (544, 36689), (608, 32827), (646, 30896), (1292, 15448), (1931, 10336), (2584, 7724), (3862, 5168)]