21229736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 48055680

約数和(自身を除く): 26825944

約数列:

[1, 2, 4, 8, 11, 17, 22, 23, 34, 44, 46, 68, 88, 92, 136, 184, 187, 253, 374, 391, 506, 617, 748, 782, 1012, 1234, 1496, 1564, 2024, 2468, 3128, 4301, 4936, 6787, 8602, 10489, 13574, 14191, 17204, 20978, 27148, 28382, 34408, 41956, 54296, 56764, 83912, 113528, 115379, 156101, 230758, 241247, 312202, 461516, 482494, 624404, 923032, 964988, 1248808, 1929976, 2653717, 5307434, 10614868, 21229736]

約数ペア:

[(1, 21229736), (2, 10614868), (4, 5307434), (8, 2653717), (11, 1929976), (17, 1248808), (22, 964988), (23, 923032), (34, 624404), (44, 482494), (46, 461516), (68, 312202), (88, 241247), (92, 230758), (136, 156101), (184, 115379), (187, 113528), (253, 83912), (374, 56764), (391, 54296), (506, 41956), (617, 34408), (748, 28382), (782, 27148), (1012, 20978), (1234, 17204), (1496, 14191), (1564, 13574), (2024, 10489), (2468, 8602), (3128, 6787), (4301, 4936)]