19515616

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 40255488

約数和(自身を除く): 20739872

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 103, 124, 191, 206, 248, 382, 412, 496, 764, 824, 992, 1528, 1648, 3056, 3193, 3296, 5921, 6112, 6386, 11842, 12772, 19673, 23684, 25544, 39346, 47368, 51088, 78692, 94736, 102176, 157384, 189472, 314768, 609863, 629536, 1219726, 2439452, 4878904, 9757808, 19515616]

約数ペア:

[(1, 19515616), (2, 9757808), (4, 4878904), (8, 2439452), (16, 1219726), (31, 629536), (32, 609863), (62, 314768), (103, 189472), (124, 157384), (191, 102176), (206, 94736), (248, 78692), (382, 51088), (412, 47368), (496, 39346), (764, 25544), (824, 23684), (992, 19673), (1528, 12772), (1648, 11842), (3056, 6386), (3193, 6112), (3296, 5921)]