19218914

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 35191800

約数和(自身を除く): 15972886

約数列:

[1, 2, 11, 13, 22, 26, 41, 82, 121, 143, 149, 242, 286, 298, 451, 533, 902, 1066, 1573, 1639, 1937, 3146, 3278, 3874, 4961, 5863, 6109, 9922, 11726, 12218, 18029, 21307, 36058, 42614, 64493, 67199, 79417, 128986, 134398, 158834, 234377, 468754, 739189, 873587, 1478378, 1747174, 9609457, 19218914]

約数ペア:

[(1, 19218914), (2, 9609457), (11, 1747174), (13, 1478378), (22, 873587), (26, 739189), (41, 468754), (82, 234377), (121, 158834), (143, 134398), (149, 128986), (242, 79417), (286, 67199), (298, 64493), (451, 42614), (533, 36058), (902, 21307), (1066, 18029), (1573, 12218), (1639, 11726), (1937, 9922), (3146, 6109), (3278, 5863), (3874, 4961)]