21887944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210461}}^1$

素因数の和:210480

約数の個数: 16

約数和(自身を含む): 44197020

約数和(自身を除く): 22309076

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210461, 420922, 841844, 1683688, 2735993, 5471986, 10943972, 21887944]

約数ペア:

[(1, 21887944), (2, 10943972), (4, 5471986), (8, 2735993), (13, 1683688), (26, 841844), (52, 420922), (104, 210461)]