19281856

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:533

約数の個数: 56

約数和(自身を含む): 42519600

約数和(自身を除く): 23237744

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 122, 176, 244, 352, 449, 488, 671, 704, 898, 976, 1342, 1796, 1952, 2684, 3592, 3904, 4939, 5368, 7184, 9878, 10736, 14368, 19756, 21472, 27389, 28736, 39512, 42944, 54778, 79024, 109556, 158048, 219112, 301279, 316096, 438224, 602558, 876448, 1205116, 1752896, 2410232, 4820464, 9640928, 19281856]

約数ペア:

[(1, 19281856), (2, 9640928), (4, 4820464), (8, 2410232), (11, 1752896), (16, 1205116), (22, 876448), (32, 602558), (44, 438224), (61, 316096), (64, 301279), (88, 219112), (122, 158048), (176, 109556), (244, 79024), (352, 54778), (449, 42944), (488, 39512), (671, 28736), (704, 27389), (898, 21472), (976, 19756), (1342, 14368), (1796, 10736), (1952, 9878), (2684, 7184), (3592, 5368), (3904, 4939)]