21093760

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1433}}^1$

素因数の和:1475

約数の個数: 64

約数和(自身を含む): 52656480

約数和(自身を除く): 31562720

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, 1433, 1472, 1840, 2866, 2944, 3680, 5732, 7165, 7360, 11464, 14330, 14720, 22928, 28660, 32959, 45856, 57320, 65918, 91712, 114640, 131836, 164795, 183424, 229280, 263672, 329590, 458560, 527344, 659180, 917120, 1054688, 1318360, 2109376, 2636720, 4218752, 5273440, 10546880, 21093760]

約数ペア:

[(1, 21093760), (2, 10546880), (4, 5273440), (5, 4218752), (8, 2636720), (10, 2109376), (16, 1318360), (20, 1054688), (23, 917120), (32, 659180), (40, 527344), (46, 458560), (64, 329590), (80, 263672), (92, 229280), (115, 183424), (128, 164795), (160, 131836), (184, 114640), (230, 91712), (320, 65918), (368, 57320), (460, 45856), (640, 32959), (736, 28660), (920, 22928), (1433, 14720), (1472, 14330), (1840, 11464), (2866, 7360), (2944, 7165), (3680, 5732)]