19194736

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{571}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 40854528

約数和(自身を除く): 21659792

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 191, 382, 571, 764, 1142, 1528, 2101, 2284, 3056, 4202, 4568, 6281, 8404, 9136, 12562, 16808, 25124, 33616, 50248, 100496, 109061, 218122, 436244, 872488, 1199671, 1744976, 2399342, 4798684, 9597368, 19194736]

約数ペア:

[(1, 19194736), (2, 9597368), (4, 4798684), (8, 2399342), (11, 1744976), (16, 1199671), (22, 872488), (44, 436244), (88, 218122), (176, 109061), (191, 100496), (382, 50248), (571, 33616), (764, 25124), (1142, 16808), (1528, 12562), (2101, 9136), (2284, 8404), (3056, 6281), (4202, 4568)]