21775754

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 44755200

約数和(自身を除く): 22979446

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 143, 146, 149, 154, 182, 286, 298, 511, 803, 949, 1001, 1022, 1043, 1606, 1639, 1898, 1937, 2002, 2086, 3278, 3874, 5621, 6643, 10439, 10877, 11242, 11473, 13286, 13559, 20878, 21307, 21754, 22946, 27118, 42614, 73073, 76139, 119647, 141401, 146146, 149149, 152278, 239294, 282802, 298298, 837529, 989807, 1555411, 1675058, 1979614, 3110822, 10887877, 21775754]

約数ペア:

[(1, 21775754), (2, 10887877), (7, 3110822), (11, 1979614), (13, 1675058), (14, 1555411), (22, 989807), (26, 837529), (73, 298298), (77, 282802), (91, 239294), (143, 152278), (146, 149149), (149, 146146), (154, 141401), (182, 119647), (286, 76139), (298, 73073), (511, 42614), (803, 27118), (949, 22946), (1001, 21754), (1022, 21307), (1043, 20878), (1606, 13559), (1639, 13286), (1898, 11473), (1937, 11242), (2002, 10877), (2086, 10439), (3278, 6643), (3874, 5621)]