19973165785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1\times {\mathrm{8941}}^1$

素因数の和:9645

約数の個数: 32

約数和(自身を含む): 26040105504

約数和(自身を除く): 6066939719

約数列:

[1, 5, 17, 41, 85, 205, 641, 697, 3205, 3485, 8941, 10897, 26281, 44705, 54485, 131405, 151997, 366581, 446777, 759985, 1832905, 2233885, 5731181, 6231877, 28655905, 31159385, 97430077, 234978421, 487150385, 1174892105, 3994633157, 19973165785]

約数ペア:

[(1, 19973165785), (5, 3994633157), (17, 1174892105), (41, 487150385), (85, 234978421), (205, 97430077), (641, 31159385), (697, 28655905), (3205, 6231877), (3485, 5731181), (8941, 2233885), (10897, 1832905), (26281, 759985), (44705, 446777), (54485, 366581), (131405, 151997)]