19812224

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5038

約数の個数: 32

約数和(自身を含む): 40751040

約数和(自身を除く): 20938816

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 4993, 9986, 19972, 39944, 79888, 154783, 159776, 309566, 319552, 619132, 639104, 1238264, 2476528, 4953056, 9906112, 19812224]

約数ペア:

[(1, 19812224), (2, 9906112), (4, 4953056), (8, 2476528), (16, 1238264), (31, 639104), (32, 619132), (62, 319552), (64, 309566), (124, 159776), (128, 154783), (248, 79888), (496, 39944), (992, 19972), (1984, 9986), (3968, 4993)]