211931690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 416544768

約数和(自身を除く): 204613078

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 107, 122, 170, 191, 214, 305, 382, 535, 610, 955, 1037, 1070, 1819, 1910, 2074, 3247, 3638, 5185, 6494, 6527, 9095, 10370, 11651, 13054, 16235, 18190, 20437, 23302, 32470, 32635, 40874, 58255, 65270, 102185, 110959, 116510, 198067, 204370, 221918, 347429, 396134, 554795, 694858, 990335, 1109590, 1246657, 1737145, 1980670, 2493314, 3474290, 6233285, 12466570, 21193169, 42386338, 105965845, 211931690]

約数ペア:

[(1, 211931690), (2, 105965845), (5, 42386338), (10, 21193169), (17, 12466570), (34, 6233285), (61, 3474290), (85, 2493314), (107, 1980670), (122, 1737145), (170, 1246657), (191, 1109590), (214, 990335), (305, 694858), (382, 554795), (535, 396134), (610, 347429), (955, 221918), (1037, 204370), (1070, 198067), (1819, 116510), (1910, 110959), (2074, 102185), (3247, 65270), (3638, 58255), (5185, 40874), (6494, 32635), (6527, 32470), (9095, 23302), (10370, 20437), (11651, 18190), (13054, 16235)]