17921394

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 40547520

約数和(自身を除く): 22626126

約数列:

[1, 2, 3, 6, 9, 18, 37, 71, 74, 111, 142, 213, 222, 333, 379, 426, 639, 666, 758, 1137, 1278, 2274, 2627, 3411, 5254, 6822, 7881, 14023, 15762, 23643, 26909, 28046, 42069, 47286, 53818, 80727, 84138, 126207, 161454, 242181, 252414, 484362, 995633, 1991266, 2986899, 5973798, 8960697, 17921394]

約数ペア:

[(1, 17921394), (2, 8960697), (3, 5973798), (6, 2986899), (9, 1991266), (18, 995633), (37, 484362), (71, 252414), (74, 242181), (111, 161454), (142, 126207), (213, 84138), (222, 80727), (333, 53818), (379, 47286), (426, 42069), (639, 28046), (666, 26909), (758, 23643), (1137, 15762), (1278, 14023), (2274, 7881), (2627, 6822), (3411, 5254)]