19199872

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{2459}}^1$

素因数の和:2534

約数の個数: 32

約数和(自身を含む): 38892600

約数和(自身を除く): 19692728

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 488, 976, 1952, 2459, 3904, 4918, 7808, 9836, 19672, 39344, 78688, 149999, 157376, 299998, 314752, 599996, 1199992, 2399984, 4799968, 9599936, 19199872]

約数ペア:

[(1, 19199872), (2, 9599936), (4, 4799968), (8, 2399984), (16, 1199992), (32, 599996), (61, 314752), (64, 299998), (122, 157376), (128, 149999), (244, 78688), (488, 39344), (976, 19672), (1952, 9836), (2459, 7808), (3904, 4918)]