21475616

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22432864

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 109, 131, 188, 218, 262, 376, 436, 524, 752, 872, 1048, 1504, 1744, 2096, 3488, 4192, 5123, 6157, 10246, 12314, 14279, 20492, 24628, 28558, 40984, 49256, 57116, 81968, 98512, 114232, 163936, 197024, 228464, 456928, 671113, 1342226, 2684452, 5368904, 10737808, 21475616]

約数ペア:

[(1, 21475616), (2, 10737808), (4, 5368904), (8, 2684452), (16, 1342226), (32, 671113), (47, 456928), (94, 228464), (109, 197024), (131, 163936), (188, 114232), (218, 98512), (262, 81968), (376, 57116), (436, 49256), (524, 40984), (752, 28558), (872, 24628), (1048, 20492), (1504, 14279), (1744, 12314), (2096, 10246), (3488, 6157), (4192, 5123)]