18768828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5231}}^1$

素因数の和:5274

約数の個数: 48

約数和(自身を含む): 49222656

約数和(自身を除く): 30453828

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 598, 897, 1196, 1794, 3588, 5231, 10462, 15693, 20924, 31386, 62772, 68003, 120313, 136006, 204009, 240626, 272012, 360939, 408018, 481252, 721878, 816036, 1443756, 1564069, 3128138, 4692207, 6256276, 9384414, 18768828]

約数ペア:

[(1, 18768828), (2, 9384414), (3, 6256276), (4, 4692207), (6, 3128138), (12, 1564069), (13, 1443756), (23, 816036), (26, 721878), (39, 481252), (46, 408018), (52, 360939), (69, 272012), (78, 240626), (92, 204009), (138, 136006), (156, 120313), (276, 68003), (299, 62772), (598, 31386), (897, 20924), (1196, 15693), (1794, 10462), (3588, 5231)]