21631960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3359}}^1$

素因数の和:3400

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 36428840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3359, 6440, 6718, 13436, 16795, 23513, 26872, 33590, 47026, 67180, 77257, 94052, 117565, 134360, 154514, 188104, 235130, 309028, 386285, 470260, 540799, 618056, 772570, 940520, 1081598, 1545140, 2163196, 2703995, 3090280, 4326392, 5407990, 10815980, 21631960]

約数ペア:

[(1, 21631960), (2, 10815980), (4, 5407990), (5, 4326392), (7, 3090280), (8, 2703995), (10, 2163196), (14, 1545140), (20, 1081598), (23, 940520), (28, 772570), (35, 618056), (40, 540799), (46, 470260), (56, 386285), (70, 309028), (92, 235130), (115, 188104), (140, 154514), (161, 134360), (184, 117565), (230, 94052), (280, 77257), (322, 67180), (460, 47026), (644, 33590), (805, 26872), (920, 23513), (1288, 16795), (1610, 13436), (3220, 6718), (3359, 6440)]