991521388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1193}}^1\times {\mathrm{1453}}^1$

素因数の和:2674

約数の個数: 48

約数和(自身を含む): 2041625376

約数和(自身を除く): 1050103988

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 1193, 1453, 2386, 2906, 4772, 5812, 13123, 15509, 15983, 18889, 26246, 31018, 31966, 37778, 52492, 62036, 63932, 75556, 170599, 207779, 341198, 415558, 682396, 831116, 1733429, 3466858, 6933716, 19067719, 22534577, 38135438, 45069154, 76270876, 90138308, 247880347, 495760694, 991521388]

約数ペア:

[(1, 991521388), (2, 495760694), (4, 247880347), (11, 90138308), (13, 76270876), (22, 45069154), (26, 38135438), (44, 22534577), (52, 19067719), (143, 6933716), (286, 3466858), (572, 1733429), (1193, 831116), (1453, 682396), (2386, 415558), (2906, 341198), (4772, 207779), (5812, 170599), (13123, 75556), (15509, 63932), (15983, 62036), (18889, 52492), (26246, 37778), (31018, 31966)]