19919614

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{241}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 37444176

約数和(自身を除く): 17524562

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 241, 286, 289, 374, 442, 482, 578, 2431, 2651, 3133, 3179, 3757, 4097, 4862, 5302, 6266, 6358, 7514, 8194, 34463, 41327, 45067, 53261, 68926, 69649, 82654, 90134, 106522, 139298, 585871, 766139, 905437, 1171742, 1532278, 1810874, 9959807, 19919614]

約数ペア:

[(1, 19919614), (2, 9959807), (11, 1810874), (13, 1532278), (17, 1171742), (22, 905437), (26, 766139), (34, 585871), (143, 139298), (187, 106522), (221, 90134), (241, 82654), (286, 69649), (289, 68926), (374, 53261), (442, 45067), (482, 41327), (578, 34463), (2431, 8194), (2651, 7514), (3133, 6358), (3179, 6266), (3757, 5302), (4097, 4862)]