20181901905

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6997}}^1\times {\mathrm{5827}}^1$

素因数の和:12846

約数の個数: 48

約数和(自身を含む): 38174145984

約数和(自身を除く): 17992244079

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 5827, 6997, 17481, 20991, 29135, 34985, 52443, 62973, 64097, 76967, 87405, 104955, 192291, 230901, 262215, 314865, 320485, 384835, 576873, 692703, 961455, 1154505, 2884365, 3463515, 40771519, 122314557, 203857595, 366943671, 448486709, 611572785, 1345460127, 1834718355, 2242433545, 4036380381, 6727300635, 20181901905]

約数ペア:

[(1, 20181901905), (3, 6727300635), (5, 4036380381), (9, 2242433545), (11, 1834718355), (15, 1345460127), (33, 611572785), (45, 448486709), (55, 366943671), (99, 203857595), (165, 122314557), (495, 40771519), (5827, 3463515), (6997, 2884365), (17481, 1154505), (20991, 961455), (29135, 692703), (34985, 576873), (52443, 384835), (62973, 320485), (64097, 314865), (76967, 262215), (87405, 230901), (104955, 192291)]