18661370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20507}}^1$

素因数の和:20534

約数の個数: 32

約数和(自身を含む): 41344128

約数和(自身を除く): 22682758

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20507, 41014, 102535, 143549, 205070, 266591, 287098, 533182, 717745, 1332955, 1435490, 1866137, 2665910, 3732274, 9330685, 18661370]

約数ペア:

[(1, 18661370), (2, 9330685), (5, 3732274), (7, 2665910), (10, 1866137), (13, 1435490), (14, 1332955), (26, 717745), (35, 533182), (65, 287098), (70, 266591), (91, 205070), (130, 143549), (182, 102535), (455, 41014), (910, 20507)]