21494742

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26405418

約数列:

[1, 2, 3, 6, 23, 29, 41, 46, 58, 69, 82, 87, 123, 131, 138, 174, 246, 262, 393, 667, 786, 943, 1189, 1334, 1886, 2001, 2378, 2829, 3013, 3567, 3799, 4002, 5371, 5658, 6026, 7134, 7598, 9039, 10742, 11397, 16113, 18078, 22794, 27347, 32226, 54694, 82041, 87377, 123533, 155759, 164082, 174754, 247066, 262131, 311518, 370599, 467277, 524262, 741198, 934554, 3582457, 7164914, 10747371, 21494742]

約数ペア:

[(1, 21494742), (2, 10747371), (3, 7164914), (6, 3582457), (23, 934554), (29, 741198), (41, 524262), (46, 467277), (58, 370599), (69, 311518), (82, 262131), (87, 247066), (123, 174754), (131, 164082), (138, 155759), (174, 123533), (246, 87377), (262, 82041), (393, 54694), (667, 32226), (786, 27347), (943, 22794), (1189, 18078), (1334, 16113), (1886, 11397), (2001, 10742), (2378, 9039), (2829, 7598), (3013, 7134), (3567, 6026), (3799, 5658), (4002, 5371)]