21868920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{20249}}^1$

素因数の和:20269

約数の個数: 64

約数和(自身を含む): 72900000

約数和(自身を除く): 51031080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 20249, 40498, 60747, 80996, 101245, 121494, 161992, 182241, 202490, 242988, 303735, 364482, 404980, 485976, 546723, 607470, 728964, 809960, 911205, 1093446, 1214940, 1457928, 1822410, 2186892, 2429880, 2733615, 3644820, 4373784, 5467230, 7289640, 10934460, 21868920]

約数ペア:

[(1, 21868920), (2, 10934460), (3, 7289640), (4, 5467230), (5, 4373784), (6, 3644820), (8, 2733615), (9, 2429880), (10, 2186892), (12, 1822410), (15, 1457928), (18, 1214940), (20, 1093446), (24, 911205), (27, 809960), (30, 728964), (36, 607470), (40, 546723), (45, 485976), (54, 404980), (60, 364482), (72, 303735), (90, 242988), (108, 202490), (120, 182241), (135, 161992), (180, 121494), (216, 101245), (270, 80996), (360, 60747), (540, 40498), (1080, 20249)]