21476480

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1459}}^1$

素因数の和:1501

約数の個数: 64

約数和(自身を含む): 53611200

約数和(自身を除く): 32134720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1459, 1472, 1840, 2918, 2944, 3680, 5836, 7295, 7360, 11672, 14590, 14720, 23344, 29180, 33557, 46688, 58360, 67114, 93376, 116720, 134228, 167785, 186752, 233440, 268456, 335570, 466880, 536912, 671140, 933760, 1073824, 1342280, 2147648, 2684560, 4295296, 5369120, 10738240, 21476480]

約数ペア:

[(1, 21476480), (2, 10738240), (4, 5369120), (5, 4295296), (8, 2684560), (10, 2147648), (16, 1342280), (20, 1073824), (23, 933760), (32, 671140), (40, 536912), (46, 466880), (64, 335570), (80, 268456), (92, 233440), (115, 186752), (128, 167785), (160, 134228), (184, 116720), (230, 93376), (320, 67114), (368, 58360), (460, 46688), (640, 33557), (736, 29180), (920, 23344), (1459, 14720), (1472, 14590), (1840, 11672), (2918, 7360), (2944, 7295), (3680, 5836)]