18650216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{461}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 37837800

約数和(自身を除く): 19187584

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 389, 461, 778, 922, 1556, 1844, 3112, 3688, 5057, 5993, 10114, 11986, 20228, 23972, 40456, 47944, 179329, 358658, 717316, 1434632, 2331277, 4662554, 9325108, 18650216]

約数ペア:

[(1, 18650216), (2, 9325108), (4, 4662554), (8, 2331277), (13, 1434632), (26, 717316), (52, 358658), (104, 179329), (389, 47944), (461, 40456), (778, 23972), (922, 20228), (1556, 11986), (1844, 10114), (3112, 5993), (3688, 5057)]