19856664

素因数分解:

$2^3\times 3^4\times {\mathrm{30643}}^1$

素因数の和:30661

約数の個数: 40

約数和(自身を含む): 55618860

約数和(自身を除く): 35762196

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 30643, 61286, 91929, 122572, 183858, 245144, 275787, 367716, 551574, 735432, 827361, 1103148, 1654722, 2206296, 2482083, 3309444, 4964166, 6618888, 9928332, 19856664]

約数ペア:

[(1, 19856664), (2, 9928332), (3, 6618888), (4, 4964166), (6, 3309444), (8, 2482083), (9, 2206296), (12, 1654722), (18, 1103148), (24, 827361), (27, 735432), (36, 551574), (54, 367716), (72, 275787), (81, 245144), (108, 183858), (162, 122572), (216, 91929), (324, 61286), (648, 30643)]