19019572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 40106304

約数和(自身を除く): 21086732

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 143, 164, 286, 451, 533, 572, 811, 902, 1066, 1622, 1804, 2132, 3244, 5863, 8921, 10543, 11726, 17842, 21086, 23452, 33251, 35684, 42172, 66502, 115973, 133004, 231946, 365761, 432263, 463892, 731522, 864526, 1463044, 1729052, 4754893, 9509786, 19019572]

約数ペア:

[(1, 19019572), (2, 9509786), (4, 4754893), (11, 1729052), (13, 1463044), (22, 864526), (26, 731522), (41, 463892), (44, 432263), (52, 365761), (82, 231946), (143, 133004), (164, 115973), (286, 66502), (451, 42172), (533, 35684), (572, 33251), (811, 23452), (902, 21086), (1066, 17842), (1622, 11726), (1804, 10543), (2132, 8921), (3244, 5863)]