19887408

素因数分解:

$2^4\times 3^2\times {\mathrm{138107}}^1$

素因数の和:138121

約数の個数: 30

約数和(自身を含む): 55657524

約数和(自身を除く): 35770116

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138107, 276214, 414321, 552428, 828642, 1104856, 1242963, 1657284, 2209712, 2485926, 3314568, 4971852, 6629136, 9943704, 19887408]

約数ペア:

[(1, 19887408), (2, 9943704), (3, 6629136), (4, 4971852), (6, 3314568), (8, 2485926), (9, 2209712), (12, 1657284), (16, 1242963), (18, 1104856), (24, 828642), (36, 552428), (48, 414321), (72, 276214), (144, 138107)]