21540144

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:322

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 37384656

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 109, 138, 179, 184, 218, 276, 327, 358, 368, 436, 537, 552, 654, 716, 872, 1074, 1104, 1308, 1432, 1744, 2148, 2507, 2616, 2864, 4117, 4296, 5014, 5232, 7521, 8234, 8592, 10028, 12351, 15042, 16468, 19511, 20056, 24702, 30084, 32936, 39022, 40112, 49404, 58533, 60168, 65872, 78044, 98808, 117066, 120336, 156088, 197616, 234132, 312176, 448753, 468264, 897506, 936528, 1346259, 1795012, 2692518, 3590024, 5385036, 7180048, 10770072, 21540144]

約数ペア:

[(1, 21540144), (2, 10770072), (3, 7180048), (4, 5385036), (6, 3590024), (8, 2692518), (12, 1795012), (16, 1346259), (23, 936528), (24, 897506), (46, 468264), (48, 448753), (69, 312176), (92, 234132), (109, 197616), (138, 156088), (179, 120336), (184, 117066), (218, 98808), (276, 78044), (327, 65872), (358, 60168), (368, 58533), (436, 49404), (537, 40112), (552, 39022), (654, 32936), (716, 30084), (872, 24702), (1074, 20056), (1104, 19511), (1308, 16468), (1432, 15042), (1744, 12351), (2148, 10028), (2507, 8592), (2616, 8234), (2864, 7521), (4117, 5232), (4296, 5014)]