19156984

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 45308160

約数和(自身を除く): 26151176

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 137, 154, 227, 274, 308, 454, 548, 616, 908, 959, 1096, 1507, 1589, 1816, 1918, 2497, 3014, 3178, 3836, 4994, 6028, 6356, 7672, 9988, 10549, 12056, 12712, 17479, 19976, 21098, 31099, 34958, 42196, 62198, 69916, 84392, 124396, 139832, 217693, 248792, 342089, 435386, 684178, 870772, 1368356, 1741544, 2394623, 2736712, 4789246, 9578492, 19156984]

約数ペア:

[(1, 19156984), (2, 9578492), (4, 4789246), (7, 2736712), (8, 2394623), (11, 1741544), (14, 1368356), (22, 870772), (28, 684178), (44, 435386), (56, 342089), (77, 248792), (88, 217693), (137, 139832), (154, 124396), (227, 84392), (274, 69916), (308, 62198), (454, 42196), (548, 34958), (616, 31099), (908, 21098), (959, 19976), (1096, 17479), (1507, 12712), (1589, 12056), (1816, 10549), (1918, 9988), (2497, 7672), (3014, 6356), (3178, 6028), (3836, 4994)]